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https://git.pwmt.org/pwmt/zathura.git
synced 2024-09-21 11:51:18 +02:00
3634636227
The adjustment callbacks act as an interface between position data in the document object, and the adjustments. We remove the horizontal centering code, as now it is done by position_set. Those callbacks should not change the position read from the document object in any way. Also, we split the adjustment_value_changed callback into a vertical and an horizontal version. Previously a single callback was reused for both, horizontal and vertical. That lead to a subtle problem when coming out of index mode. What happened was the following: 1. horizontal adjustment bounds change coming out of index mode. This triggers an hadjustment changed signal. 2. the hadjustment_changed callback handles it, and resets the hadjustment value, as the bound may have changed. This triggers a value_changed event. 3. the value_changed callback handles the event, and captures the position for *BOTH*, horizontal and vertical adjustments, saving them to the document object. 1..3 is repeated for the vertical adjustment. Now, if in 3. the horizontal adjustment bounds were not yet updated after the index mode, we got ourselves at the wrong vertical position. This race condition is avoided now because both value_changed callbacks *ONLY* handle their own direction, either vertical or horizontal, not both.
582 lines
16 KiB
C
582 lines
16 KiB
C
/* See LICENSE file for license and copyright information */
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#include <girara/statusbar.h>
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#include <girara/session.h>
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#include <girara/settings.h>
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#include <girara/utils.h>
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#include <stdlib.h>
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#include <gtk/gtk.h>
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#include <string.h>
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#include <glib/gi18n.h>
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#include <math.h>
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#include "callbacks.h"
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#include "links.h"
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#include "zathura.h"
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#include "render.h"
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#include "document.h"
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#include "utils.h"
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#include "shortcuts.h"
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#include "page-widget.h"
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#include "page.h"
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#include "adjustment.h"
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gboolean
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cb_destroy(GtkWidget* UNUSED(widget), zathura_t* zathura)
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{
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if (zathura != NULL && zathura->document != NULL) {
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document_close(zathura, false);
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}
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gtk_main_quit();
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return TRUE;
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}
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void
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cb_buffer_changed(girara_session_t* session)
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{
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g_return_if_fail(session != NULL);
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g_return_if_fail(session->global.data != NULL);
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zathura_t* zathura = session->global.data;
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char* buffer = girara_buffer_get(session);
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if (buffer != NULL) {
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girara_statusbar_item_set_text(session, zathura->ui.statusbar.buffer, buffer);
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free(buffer);
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} else {
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girara_statusbar_item_set_text(session, zathura->ui.statusbar.buffer, "");
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}
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}
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static void
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update_visible_pages(zathura_t* zathura) {
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const unsigned int number_of_pages = zathura_document_get_number_of_pages(zathura->document);
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for (unsigned int page_id = 0; page_id < number_of_pages; page_id++) {
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zathura_page_t* page = zathura_document_get_page(zathura->document, page_id);
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GtkWidget* page_widget = zathura_page_get_widget(zathura, page);
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ZathuraPage* zathura_page_widget = ZATHURA_PAGE(page_widget);
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if (page_is_visible(zathura->document, page_id) == true) {
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/* make page visible */
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if (zathura_page_get_visibility(page) == false) {
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zathura_page_set_visibility(page, true);
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zathura_page_widget_update_view_time(zathura_page_widget);
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zathura_renderer_page_cache_add(zathura->sync.render_thread, zathura_page_get_index(page));
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}
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} else {
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/* make page invisible */
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if (zathura_page_get_visibility(page) == true) {
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zathura_page_set_visibility(page, false);
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/* If a page becomes invisible, abort the render request. */
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zathura_page_widget_abort_render_request(zathura_page_widget);
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}
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/* reset current search result */
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girara_list_t* results = NULL;
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g_object_get(page_widget, "search-results", &results, NULL);
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if (results != NULL) {
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g_object_set(page_widget, "search-current", 0, NULL);
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}
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}
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}
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}
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void
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cb_view_hadjustment_value_changed(GtkAdjustment* adjustment, gpointer data)
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{
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zathura_t* zathura = data;
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if (zathura == NULL || zathura->document == NULL) {
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return;
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}
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update_visible_pages(zathura);
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double position_x = zathura_adjustment_get_ratio(adjustment);
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double position_y = zathura_document_get_position_y(zathura->document);
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unsigned int page_id = position_to_page_number(zathura->document, position_x, position_y);
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zathura_document_set_position_x(zathura->document, position_x);
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zathura_document_set_position_y(zathura->document, position_y);
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zathura_document_set_current_page_number(zathura->document, page_id);
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statusbar_page_number_update(zathura);
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}
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void
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cb_view_vadjustment_value_changed(GtkAdjustment* adjustment, gpointer data)
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{
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zathura_t* zathura = data;
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if (zathura == NULL || zathura->document == NULL) {
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return;
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}
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update_visible_pages(zathura);
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double position_x = zathura_document_get_position_x(zathura->document);
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double position_y = zathura_adjustment_get_ratio(adjustment);
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unsigned int page_id = position_to_page_number(zathura->document, position_x, position_y);
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zathura_document_set_position_x(zathura->document, position_x);
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zathura_document_set_position_y(zathura->document, position_y);
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zathura_document_set_current_page_number(zathura->document, page_id);
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statusbar_page_number_update(zathura);
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}
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void
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cb_view_hadjustment_changed(GtkAdjustment* adjustment, gpointer data)
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{
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zathura_t* zathura = data;
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g_return_if_fail(zathura != NULL);
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zathura_adjust_mode_t adjust_mode =
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zathura_document_get_adjust_mode(zathura->document);
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/* Don't scroll we're focusing the inputbar. */
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if (adjust_mode == ZATHURA_ADJUST_INPUTBAR) {
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return;
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}
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/* save the viewport size */
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unsigned int view_width = (unsigned int)floor(gtk_adjustment_get_page_size(adjustment));
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zathura_document_set_viewport_width(zathura->document, view_width);
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/* reset the adjustment, in case bounds have changed */
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double ratio = zathura_document_get_position_x(zathura->document);
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zathura_adjustment_set_value_from_ratio(adjustment, ratio);
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}
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void
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cb_view_vadjustment_changed(GtkAdjustment* adjustment, gpointer data)
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{
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zathura_t* zathura = data;
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g_return_if_fail(zathura != NULL);
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zathura_adjust_mode_t adjust_mode =
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zathura_document_get_adjust_mode(zathura->document);
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/* Don't scroll we're focusing the inputbar. */
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if (adjust_mode == ZATHURA_ADJUST_INPUTBAR) {
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return;
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}
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/* save the viewport size */
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unsigned int view_height = (unsigned int)floor(gtk_adjustment_get_page_size(adjustment));
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zathura_document_set_viewport_height(zathura->document, view_height);
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/* reset the adjustment, in case bounds have changed */
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double ratio = zathura_document_get_position_y(zathura->document);
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zathura_adjustment_set_value_from_ratio(adjustment, ratio);
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}
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void
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cb_refresh_view(GtkWidget* GIRARA_UNUSED(view), gpointer data)
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{
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zathura_t* zathura = data;
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if (zathura == NULL || zathura->document == NULL) {
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return;
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}
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unsigned int page_id = zathura_document_get_current_page_number(zathura->document);
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zathura_page_t* page = zathura_document_get_page(zathura->document, page_id);
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if (page == NULL) {
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return;
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}
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GtkAdjustment* vadj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(zathura->ui.session->gtk.view));
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GtkAdjustment* hadj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(zathura->ui.session->gtk.view));
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double position_x = zathura_document_get_position_x(zathura->document);
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double position_y = zathura_document_get_position_y(zathura->document);
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zathura_adjustment_set_value_from_ratio(vadj, position_y);
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zathura_adjustment_set_value_from_ratio(hadj, position_x);
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statusbar_page_number_update(zathura);
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}
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void
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cb_adjustment_track_value(GtkAdjustment* adjustment, gpointer data)
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{
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GtkAdjustment* tracker = data;
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gdouble lower = gtk_adjustment_get_lower(adjustment);
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gdouble upper = gtk_adjustment_get_upper(adjustment);
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if (lower != gtk_adjustment_get_lower(tracker) ||
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upper != gtk_adjustment_get_upper(tracker)) {
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return;
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}
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gdouble value = gtk_adjustment_get_value(adjustment);
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gtk_adjustment_set_value(tracker, value);
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}
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void
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cb_adjustment_track_bounds(GtkAdjustment* adjustment, gpointer data)
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{
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GtkAdjustment* tracker = data;
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gdouble value = gtk_adjustment_get_value(adjustment);
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gdouble lower = gtk_adjustment_get_lower(adjustment);
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gdouble upper = gtk_adjustment_get_upper(adjustment);
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gdouble page_size = gtk_adjustment_get_page_size(adjustment);
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gtk_adjustment_set_value(tracker, value);
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gtk_adjustment_set_lower(tracker, lower);
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gtk_adjustment_set_upper(tracker, upper);
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gtk_adjustment_set_page_size(tracker, page_size);
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}
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void
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cb_page_layout_value_changed(girara_session_t* session, const char* UNUSED(name), girara_setting_type_t UNUSED(type), void* value, void* UNUSED(data))
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{
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g_return_if_fail(value != NULL);
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g_return_if_fail(session != NULL);
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g_return_if_fail(session->global.data != NULL);
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zathura_t* zathura = session->global.data;
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unsigned int pages_per_row = 1;
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girara_setting_get(session, "pages-per-row", &pages_per_row);
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unsigned int first_page_column = 1;
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girara_setting_get(session, "first-page-column", &first_page_column);
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unsigned int page_padding = 1;
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girara_setting_get(zathura->ui.session, "page-padding", &page_padding);
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page_widget_set_mode(zathura, page_padding, pages_per_row, first_page_column);
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zathura_document_set_page_layout(zathura->document, page_padding, pages_per_row, first_page_column);
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}
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void
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cb_index_row_activated(GtkTreeView* tree_view, GtkTreePath* path,
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GtkTreeViewColumn* UNUSED(column), void* data)
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{
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zathura_t* zathura = data;
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if (tree_view == NULL || zathura == NULL || zathura->ui.session == NULL) {
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return;
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}
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GtkTreeModel *model;
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GtkTreeIter iter;
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g_object_get(tree_view, "model", &model, NULL);
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if(gtk_tree_model_get_iter(model, &iter, path)) {
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zathura_index_element_t* index_element;
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gtk_tree_model_get(model, &iter, 2, &index_element, -1);
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if (index_element == NULL) {
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return;
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}
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sc_toggle_index(zathura->ui.session, NULL, NULL, 0);
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zathura_link_evaluate(zathura, index_element->link);
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}
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g_object_unref(model);
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}
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typedef enum zathura_link_action_e
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{
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ZATHURA_LINK_ACTION_FOLLOW,
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ZATHURA_LINK_ACTION_DISPLAY
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} zathura_link_action_t;
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static bool
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handle_link(GtkEntry* entry, girara_session_t* session,
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zathura_link_action_t action)
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{
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g_return_val_if_fail(session != NULL, FALSE);
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g_return_val_if_fail(session->global.data != NULL, FALSE);
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zathura_t* zathura = session->global.data;
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bool eval = true;
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char* input = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
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if (input == NULL || strlen(input) == 0) {
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eval = false;
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}
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int index = 0;
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if (eval == true) {
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index = atoi(input);
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if (index == 0 && g_strcmp0(input, "0") != 0) {
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girara_notify(session, GIRARA_WARNING, _("Invalid input '%s' given."), input);
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eval = false;
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}
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index = index - 1;
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}
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/* set pages to draw links */
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bool invalid_index = true;
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unsigned int number_of_pages = zathura_document_get_number_of_pages(zathura->document);
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for (unsigned int page_id = 0; page_id < number_of_pages; page_id++) {
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zathura_page_t* page = zathura_document_get_page(zathura->document, page_id);
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if (page == NULL || zathura_page_get_visibility(page) == false) {
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continue;
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}
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GtkWidget* page_widget = zathura_page_get_widget(zathura, page);
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g_object_set(page_widget, "draw-links", FALSE, NULL);
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if (eval == true) {
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zathura_link_t* link = zathura_page_widget_link_get(ZATHURA_PAGE(page_widget), index);
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if (link != NULL) {
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invalid_index = false;
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switch (action) {
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case ZATHURA_LINK_ACTION_FOLLOW:
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zathura_link_evaluate(zathura, link);
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break;
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case ZATHURA_LINK_ACTION_DISPLAY:
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zathura_link_display(zathura, link);
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break;
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}
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}
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}
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}
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if (eval == true && invalid_index == true) {
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girara_notify(session, GIRARA_WARNING, _("Invalid index '%s' given."), input);
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}
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g_free(input);
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return (eval == TRUE) ? TRUE : FALSE;
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}
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bool
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cb_sc_follow(GtkEntry* entry, girara_session_t* session)
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{
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return handle_link(entry, session, ZATHURA_LINK_ACTION_FOLLOW);
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}
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bool
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cb_sc_display_link(GtkEntry* entry, girara_session_t* session)
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{
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return handle_link(entry, session, ZATHURA_LINK_ACTION_DISPLAY);
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}
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static gboolean
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file_monitor_reload(void* data)
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{
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sc_reload((girara_session_t*) data, NULL, NULL, 0);
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return FALSE;
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}
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void
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cb_file_monitor(GFileMonitor* monitor, GFile* file, GFile* UNUSED(other_file), GFileMonitorEvent event, girara_session_t* session)
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{
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g_return_if_fail(monitor != NULL);
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g_return_if_fail(file != NULL);
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g_return_if_fail(session != NULL);
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switch (event) {
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case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
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case G_FILE_MONITOR_EVENT_CREATED:
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g_main_context_invoke(NULL, file_monitor_reload, session);
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break;
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default:
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return;
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}
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}
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static gboolean
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password_dialog(gpointer data)
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{
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zathura_password_dialog_info_t* dialog = data;
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if (dialog != NULL) {
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girara_dialog(
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dialog->zathura->ui.session,
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"Incorrect password. Enter password:",
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true,
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NULL,
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(girara_callback_inputbar_activate_t) cb_password_dialog,
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dialog
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);
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}
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return FALSE;
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}
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bool
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cb_password_dialog(GtkEntry* entry, zathura_password_dialog_info_t* dialog)
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{
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if (entry == NULL || dialog == NULL) {
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goto error_ret;
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}
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if (dialog->path == NULL) {
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free(dialog);
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goto error_ret;
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}
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if (dialog->zathura == NULL) {
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goto error_free;
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}
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char* input = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
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/* no or empty password: ask again */
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if (input == NULL || strlen(input) == 0) {
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if (input != NULL) {
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g_free(input);
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}
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gdk_threads_add_idle(password_dialog, dialog);
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return false;
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}
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/* try to open document again */
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if (document_open(dialog->zathura, dialog->path, input,
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ZATHURA_PAGE_NUMBER_UNSPECIFIED) == false) {
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gdk_threads_add_idle(password_dialog, dialog);
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} else {
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g_free(dialog->path);
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free(dialog);
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}
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g_free(input);
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return true;
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error_free:
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g_free(dialog->path);
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free(dialog);
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error_ret:
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return false;
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}
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bool
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cb_view_resized(GtkWidget* UNUSED(widget), GtkAllocation* UNUSED(allocation), zathura_t* zathura)
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{
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if (zathura == NULL || zathura->document == NULL) {
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return false;
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}
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/* adjust the scale according to settings. If nothing needs to be resized,
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it does not trigger the resize event.
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The right viewport size is already in the document object, due to a
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previous call to adjustment_changed. We don't want to use the allocation in
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here, because we would have to subtract scrollbars, etc. */
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adjust_view(zathura);
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return false;
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}
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void
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cb_setting_recolor_change(girara_session_t* session, const char* name,
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girara_setting_type_t UNUSED(type), void* value, void* UNUSED(data))
|
|
{
|
|
g_return_if_fail(value != NULL);
|
|
g_return_if_fail(session != NULL);
|
|
g_return_if_fail(session->global.data != NULL);
|
|
g_return_if_fail(name != NULL);
|
|
zathura_t* zathura = session->global.data;
|
|
|
|
const bool bool_value = *((bool*) value);
|
|
|
|
if (zathura->sync.render_thread != NULL && zathura_renderer_recolor_enabled(zathura->sync.render_thread) != bool_value) {
|
|
zathura_renderer_enable_recolor(zathura->sync.render_thread, bool_value);
|
|
render_all(zathura);
|
|
}
|
|
}
|
|
|
|
void
|
|
cb_setting_recolor_keep_hue_change(girara_session_t* session, const char* name,
|
|
girara_setting_type_t UNUSED(type), void* value, void* UNUSED(data))
|
|
{
|
|
g_return_if_fail(value != NULL);
|
|
g_return_if_fail(session != NULL);
|
|
g_return_if_fail(session->global.data != NULL);
|
|
g_return_if_fail(name != NULL);
|
|
zathura_t* zathura = session->global.data;
|
|
|
|
const bool bool_value = *((bool*) value);
|
|
|
|
if (zathura->sync.render_thread != NULL && zathura_renderer_recolor_hue_enabled(zathura->sync.render_thread) != bool_value) {
|
|
zathura_renderer_enable_recolor_hue(zathura->sync.render_thread, bool_value);
|
|
render_all(zathura);
|
|
}
|
|
}
|
|
|
|
|
|
bool
|
|
cb_unknown_command(girara_session_t* session, const char* input)
|
|
{
|
|
g_return_val_if_fail(session != NULL, false);
|
|
g_return_val_if_fail(session->global.data != NULL, false);
|
|
g_return_val_if_fail(input != NULL, false);
|
|
|
|
zathura_t* zathura = session->global.data;
|
|
|
|
if (zathura->document == NULL) {
|
|
return false;
|
|
}
|
|
|
|
/* check for number */
|
|
const size_t size = strlen(input);
|
|
for (size_t i = 0; i < size; i++) {
|
|
if (g_ascii_isdigit(input[i]) == FALSE) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
zathura_jumplist_add(zathura);
|
|
page_set(zathura, atoi(input) - 1);
|
|
zathura_jumplist_add(zathura);
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
cb_page_widget_text_selected(ZathuraPage* page, const char* text, void* data)
|
|
{
|
|
g_return_if_fail(page != NULL);
|
|
g_return_if_fail(text != NULL);
|
|
g_return_if_fail(data != NULL);
|
|
|
|
zathura_t* zathura = data;
|
|
GdkAtom* selection = get_selection(zathura);
|
|
|
|
/* copy to clipboard */
|
|
if (selection != NULL) {
|
|
gtk_clipboard_set_text(gtk_clipboard_get(*selection), text, -1);
|
|
|
|
char* stripped_text = g_strdelimit(g_strdup(text), "\n\t\r\n", ' ');
|
|
char* escaped_text = g_markup_printf_escaped(
|
|
_("Copied selected text to clipboard: %s"), stripped_text);
|
|
g_free(stripped_text);
|
|
|
|
girara_notify(zathura->ui.session, GIRARA_INFO, "%s", escaped_text);
|
|
g_free(escaped_text);
|
|
}
|
|
|
|
g_free(selection);
|
|
}
|
|
|
|
void
|
|
cb_page_widget_image_selected(ZathuraPage* page, GdkPixbuf* pixbuf, void* data)
|
|
{
|
|
g_return_if_fail(page != NULL);
|
|
g_return_if_fail(pixbuf != NULL);
|
|
g_return_if_fail(data != NULL);
|
|
|
|
zathura_t* zathura = data;
|
|
GdkAtom* selection = get_selection(zathura);
|
|
|
|
if (selection != NULL) {
|
|
gtk_clipboard_set_image(gtk_clipboard_get(*selection), pixbuf);
|
|
}
|
|
|
|
g_free(selection);
|
|
}
|