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[Gtk4Prep] Views: Use Gtk.GestureMultiPress (#2399)
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@jeremypw
jeremypw authored Jan 29, 2024
1 parent 898b19b commit a4d617f
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Showing 4 changed files with 48 additions and 149 deletions.
166 changes: 35 additions & 131 deletions src/View/AbstractDirectoryView.vala
View file
Original file line number Diff line number Diff line change
Expand Up @@ -128,8 +128,6 @@ namespace Files {
/* Used only when acting as drag source */
double drag_x = 0;
double drag_y = 0;
int drag_button;
uint drag_timer_id = 0;
protected GLib.List<Files.File> source_drag_file_list = null;
protected Gdk.Atom current_target_type = Gdk.Atom.NONE;

Expand Down Expand Up @@ -191,7 +189,6 @@ namespace Files {
protected bool on_directory = false;
protected bool one_or_less = true;
protected bool should_activate = false;
protected bool should_scroll = true;
protected bool should_deselect = false;
public bool singleclick_select { get; set; }
protected bool should_select = false;
Expand Down Expand Up @@ -279,6 +276,7 @@ namespace Files {
protected unowned Gtk.RecentManager recent;

protected Gtk.EventControllerKey key_controller;
protected Gtk.GestureMultiPress button_controller;

public signal void path_change_request (GLib.File location, Files.OpenFlag flag, bool new_root);
public signal void selection_changed (GLib.List<Files.File> gof_file);
Expand Down Expand Up @@ -328,8 +326,6 @@ namespace Files {

view.motion_notify_event.connect (on_motion_notify_event);
view.leave_notify_event.connect (on_leave_notify_event);
view.button_press_event.connect (on_view_button_press_event);
view.button_release_event.connect (on_view_button_release_event);
view.draw.connect (on_view_draw);
view.realize.connect (() => {
schedule_thumbnail_color_tag_timeout ();
Expand All @@ -338,8 +334,14 @@ namespace Files {
key_controller = new Gtk.EventControllerKey (view) {
propagation_phase = BUBBLE
};

key_controller.key_pressed.connect (on_view_key_press_event);

button_controller = new Gtk.GestureMultiPress (view) {
propagation_phase = CAPTURE,
button = 0
};
button_controller.pressed.connect (on_view_button_press_event);
button_controller.released.connect (on_view_button_release_event);
}

freeze_tree (); /* speed up loading of icon view. Thawed when directory loaded */
Expand Down Expand Up @@ -724,7 +726,7 @@ namespace Files {
/* Set up as drag source */
Gtk.drag_source_set (
widget,
Gdk.ModifierType.BUTTON1_MASK | Gdk.ModifierType.BUTTON3_MASK | Gdk.ModifierType.CONTROL_MASK,
Gdk.ModifierType.BUTTON1_MASK | Gdk.ModifierType.CONTROL_MASK,
DRAG_TARGETS,
FILE_DRAG_ACTIONS
);
Expand All @@ -734,11 +736,6 @@ namespace Files {
widget.drag_end.connect (on_drag_end);
}

protected void cancel_drag_timer () {
disconnect_drag_timeout_motion_and_release_events ();
cancel_timeout (ref drag_timer_id);
}

protected void cancel_thumbnailing () {
if (thumbnail_request >= 0) {
thumbnailer.dequeue (thumbnail_request);
Expand Down Expand Up @@ -1531,43 +1528,6 @@ namespace Files {
return true;
}

/** Handle Button events */
private bool on_drag_timeout_button_release (Gdk.EventButton event) {
/* Only active during drag timeout */
cancel_drag_timer ();
return true;
}

/** Handle Motion events */
private bool on_drag_timeout_motion_notify (Gdk.EventMotion event) {
/* Only active during drag timeout */
Gdk.DragContext context;
var widget = get_child ();
double x, y;
event.get_coords (out x, out y);

if (Gtk.drag_check_threshold (widget, (int)drag_x, (int)drag_y, (int)x, (int)y)) {
cancel_drag_timer ();
should_activate = false;
var target_list = new Gtk.TargetList (DRAG_TARGETS);
var actions = FILE_DRAG_ACTIONS;

if (drag_button == Gdk.BUTTON_SECONDARY) {
actions |= Gdk.DragAction.ASK;
}

context = Gtk.drag_begin_with_coordinates (widget,
target_list,
actions,
drag_button,
(Gdk.Event) event,
(int)x, (int)y);
return true;
} else {
return false;
}
}

/** Handle TreeModel events */
protected virtual void on_row_deleted (Gtk.TreePath path) {
unselect_all ();
Expand Down Expand Up @@ -1923,23 +1883,9 @@ namespace Files {
* instead.
**/

protected void start_drag_timer (Gdk.Event event) {
connect_drag_timeout_motion_and_release_events ();
uint button;
if (event.get_button (out button)) {
drag_button = (int)button;

drag_timer_id = GLib.Timeout.add_full (GLib.Priority.LOW,
300,
() => {
on_drag_timeout_button_release ((Gdk.EventButton)event);
return GLib.Source.REMOVE;
});
}
}

protected void show_context_menu (Gdk.Event event) requires (window != null) {
cancel_drag_timer ();
/* select selection or background context menu */
update_menu_actions ();

Expand Down Expand Up @@ -2887,22 +2833,6 @@ namespace Files {
model.row_deleted.connect (on_row_deleted);
}

private void connect_drag_timeout_motion_and_release_events () {
var real_view = get_child ();
real_view.button_release_event.connect (on_drag_timeout_button_release);
real_view.motion_notify_event.connect (on_drag_timeout_motion_notify);
}

private void disconnect_drag_timeout_motion_and_release_events () {
if (drag_timer_id == 0) {
return;
}

var real_view = get_child ();
real_view.button_release_event.disconnect (on_drag_timeout_button_release);
real_view.motion_notify_event.disconnect (on_drag_timeout_motion_notify);
}

private void start_drag_scroll_timer (Gdk.DragContext context) requires (window != null) {
drag_scroll_timer_id = GLib.Timeout.add_full (GLib.Priority.LOW,
50,
Expand Down Expand Up @@ -3274,7 +3204,9 @@ namespace Files {
return true;
}

click_zone = get_event_position_info (event, out path, false);
double x, y;
event.get_coords (out x, out y);
click_zone = get_event_position_info (x, y, out path, false);

if ((path != null && hover_path == null) ||
(path == null && hover_path != null) ||
Expand Down Expand Up @@ -3502,12 +3434,7 @@ namespace Files {
return false;
}

protected virtual bool handle_primary_button_click (Gdk.Event event, Gtk.TreePath? path) {
return true;
}

protected virtual bool handle_secondary_button_click (Gdk.EventButton event) {
should_scroll = false;
protected virtual bool handle_primary_button_click (uint n_press, Gdk.ModifierType mods, Gtk.TreePath? path) {
return true;
}

Expand All @@ -3526,35 +3453,26 @@ namespace Files {
}
}

protected virtual bool on_view_button_press_event (Gdk.EventButton event) {
protected virtual void on_view_button_press_event (int n_press, double x, double y) {
if (renaming) {
/* Commit any change if renaming (https://github.com/elementary/files/issues/641) */
name_renderer.end_editing (false);
}

cancel_hover (); /* cancel overlay statusbar cancellables */

/* Ignore if second button pressed before first released - not permitted during rubberbanding.
* Multiple click produces an event without corresponding release event so do not block that.
*/
var type = event.get_event_type ();
if (dnd_disabled && type == Gdk.EventType.BUTTON_PRESS) {
return true;
}

grab_focus ();

Gtk.TreePath? path = null;
/* Remember position of click for detecting drag motion*/
event.get_coords (out drag_x, out drag_y);
uint button;
event.get_button (out button);
// /* Remember position of click for detecting drag motion*/
drag_x = x;
drag_y = y;
var button = button_controller.get_current_button ();
Gdk.ModifierType state;
Gtk.get_current_event_state (out state); // In Gtk4 this can be obtained from controller

//Only rubberband with primary button
click_zone = get_event_position_info (event, out path, button == Gdk.BUTTON_PRIMARY);
click_zone = get_event_position_info (x, y, out path, button == Gdk.BUTTON_PRIMARY);
click_path = path;

Gdk.ModifierType state;
event.get_state (out state);
var mods = state & Gtk.accelerator_get_default_mod_mask ();
bool no_mods = (mods == 0);
bool control_pressed = ((mods & Gdk.ModifierType.CONTROL_MASK) != 0);
Expand All @@ -3564,21 +3482,20 @@ namespace Files {
bool only_shift_pressed = shift_pressed && !control_pressed && !other_mod_pressed;
bool path_selected = (path != null ? path_is_selected (path) : false);
bool on_blank = (click_zone == ClickZone.BLANK_NO_PATH || click_zone == ClickZone.BLANK_PATH);
bool double_click_event = (type == Gdk.EventType.@2BUTTON_PRESS);
bool double_click_event = (n_press == 2);
/* Block drag and drop to allow rubberbanding and prevent unwanted effects of
* dragging on blank areas
*/
block_drag_and_drop ();
/* Handle un-modified clicks or control-clicks here else pass on. */
if (!will_handle_button_press (no_mods, only_control_pressed, only_shift_pressed)) {
return false;
return;
}

bool result = false; // default false so events get passed to Window
should_activate = false;
should_deselect = false;
should_select = false;
should_scroll = true;

/* Handle all selection and deselection explicitly in the following switch statement */
switch (button) {
Expand Down Expand Up @@ -3622,7 +3539,7 @@ namespace Files {

select_path (path, true);
unblock_drag_and_drop ();
result = handle_primary_button_click (event, path);
result = handle_primary_button_click (n_press, mods, path);
}

update_selected_files_and_menu ();
Expand All @@ -3647,7 +3564,7 @@ namespace Files {
case ClickZone.EXPANDER:
/* on expanders (if any) or xpad. Handle ourselves so that clicking
* on xpad also expands/collapses row (accessibility). */
result = expand_collapse (path);
expand_collapse (path);
break;

default:
Expand All @@ -3663,8 +3580,6 @@ namespace Files {

should_activate = true;
unblock_drag_and_drop ();
result = true;

break;

case Gdk.BUTTON_SECONDARY: // button 3
Expand Down Expand Up @@ -3697,37 +3612,27 @@ namespace Files {

/* Ensure selected files list and menu actions are updated before context menu shown */
update_selected_files_and_menu ();
unblock_drag_and_drop ();
start_drag_timer (event);

result = handle_secondary_button_click (event);
break;

default:
result = handle_default_button_click (event);
result = handle_default_button_click ();
break;
}

return result;
}

protected virtual bool on_view_button_release_event (Gdk.EventButton event) {
protected virtual void on_view_button_release_event (int n_press, double x, double y) {
unblock_drag_and_drop ();
/* Ignore button release from click that started renaming.
* View may lose focus during a drag if another tab is hovered, in which case
* we do not want to refocus this view.
* Under both these circumstances, 'should_activate' will be false */
if (renaming || !view_has_focus ()) {
return true;
return;
}

slot.active (should_scroll);
var button = button_controller.get_current_button ();
slot.active (button == Gdk.BUTTON_SECONDARY);

// Gtk.Widget widget = ;
double x, y;
uint button;
event.get_coords (out x, out y);
event.get_button (out button);
/* Only take action if pointer has not moved */
if (!Gtk.drag_check_threshold (get_child (), (int)drag_x, (int)drag_y, (int)x, (int)y)) {
if (should_activate) {
Expand All @@ -3742,7 +3647,7 @@ namespace Files {
} else if (should_select && click_path != null) {
select_path (click_path);
} else if (button == Gdk.BUTTON_SECONDARY) {
show_context_menu (event);
on_popup_menu ();
}
}

Expand All @@ -3757,7 +3662,7 @@ namespace Files {
should_deselect = false;
should_select = false;
click_path = null;
return false;
return;
}

public virtual void change_zoom_level () {
Expand Down Expand Up @@ -3888,7 +3793,7 @@ namespace Files {
return true;
}

protected virtual bool handle_default_button_click (Gdk.Event event) {
protected virtual bool handle_default_button_click () {
/* pass unhandled events to the View.Window */
return false;
}
Expand All @@ -3901,7 +3806,6 @@ namespace Files {
grab_focus (); /* Cancel any renaming */
cancel_hover ();
cancel_thumbnailing ();
cancel_drag_timer ();
cancel_timeout (ref drag_scroll_timer_id);
cancel_timeout (ref add_remove_file_timeout_id);
cancel_timeout (ref set_cursor_timeout_id);
Expand Down Expand Up @@ -4105,7 +4009,7 @@ namespace Files {

protected abstract Gtk.Widget? create_view ();

protected abstract uint get_event_position_info (Gdk.Event event,
protected abstract uint get_event_position_info (double x, double y,
out Gtk.TreePath? path,
bool rubberband = false);

Expand Down
8 changes: 1 addition & 7 deletions src/View/AbstractTreeView.vala
View file
Original file line number Diff line number Diff line change
Expand Up @@ -173,7 +173,7 @@ namespace Files {
return tree.get_visible_range (out start_path, out end_path);
}

protected override uint get_event_position_info (Gdk.Event event,
protected override uint get_event_position_info (double x, double y,
out Gtk.TreePath? path,
bool rubberband = false) {
Gtk.TreePath? p = null;
Expand All @@ -182,13 +182,7 @@ namespace Files {
int cx, cy, depth;
path = null;

var ewindow = event.get_window ();
if (ewindow != tree.get_bin_window ()) {
return ClickZone.INVALID;
}

double x, y;
event.get_coords (out x, out y);
tree.get_path_at_pos ((int)x, (int)y, out p, out c, out cx, out cy);
path = p;
depth = p != null ? p.get_depth () : 0;
Expand Down
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