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workspaceSwitcherPopup: Support horizontal layout

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While mutter supports a variety of different grid layouts (n columns/rows,
growing vertically or horizontally from any of the four corners), we
hardcode a fixed vertical layout of a single column.

Now that mutter exposes the actual layout to us, add support for a more
traditional horizontal layout as well.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/575
This commit is contained in:
Florian Müllner
2019-06-04 19:22:26 +00:00
parent 43443d08ae
commit ab0f74aa15
3 changed files with 97 additions and 27 deletions
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85
js/ui/workspaceSwitcherPopup.js
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@ -17,41 +17,74 @@ class WorkspaceSwitcherPopupList extends St.Widget {
this._itemSpacing = 0;
this._childHeight = 0;
this._childWidth = 0;
this._orientation = global.workspace_manager.layout_rows == -1
? Clutter.Orientation.VERTICAL
: Clutter.Orientation.HORIZONTAL;
this.connect('style-changed', () => {
this._itemSpacing = this.get_theme_node().get_length('spacing');
});
}
vfunc_get_preferred_height(forWidth) {
_getPreferredSizeForOrientation(forSize) {
let workArea = Main.layoutManager.getWorkAreaForMonitor(Main.layoutManager.primaryIndex);
let themeNode = this.get_theme_node();
let availHeight = workArea.height;
availHeight -= themeNode.get_vertical_padding();
let availSize;
if (this._orientation == Clutter.Orientation.HORIZONTAL)
availSize = workArea.width - themeNode.get_horizontal_padding();
else
availSize = workArea.height - themeNode.get_vertical_padding();
let height = 0;
let size = 0;
for (let child of this.get_children()) {
let [childMinHeight, childNaturalHeight] = child.get_preferred_height(-1);
let [childMinWidth, childNaturalWidth] = child.get_preferred_width(childNaturalHeight);
height += childNaturalHeight * workArea.width / workArea.height;
let height = childNaturalHeight * workArea.width / workArea.height;
if (this._orientation == Clutter.Orientation.HORIZONTAL)
size += height * workArea.width / workArea.height;
else
size += height;
}
let workspaceManager = global.workspace_manager;
let spacing = this._itemSpacing * (workspaceManager.n_workspaces - 1);
height += spacing;
height = Math.min(height, availHeight);
size += spacing;
size = Math.min(size, availSize);
this._childHeight = (height - spacing) / workspaceManager.n_workspaces;
if (this._orientation == Clutter.Orientation.HORIZONTAL) {
this._childWidth = (size - spacing) / workspaceManager.n_workspaces;
return themeNode.adjust_preferred_width(size, size);
} else {
this._childHeight = (size - spacing) / workspaceManager.n_workspaces;
return themeNode.adjust_preferred_height(size, size);
}
}
return themeNode.adjust_preferred_height(height, height);
_getSizeForOppositeOrientation() {
let workArea = Main.layoutManager.getWorkAreaForMonitor(Main.layoutManager.primaryIndex);
if (this._orientation == Clutter.Orientation.HORIZONTAL) {
this._childHeight = Math.round(this._childWidth * workArea.height / workArea.width);
return [this._childHeight, this._childHeight];
} else {
this._childWidth = Math.round(this._childHeight * workArea.width / workArea.height);
return [this._childWidth, this._childWidth];
}
}
vfunc_get_preferred_height(forWidth) {
if (this._orientation == Clutter.Orientation.HORIZONTAL)
return this._getSizeForOppositeOrientation();
else
return this._getPreferredSizeForOrientation(forWidth);
}
vfunc_get_preferred_width(forHeight) {
let workArea = Main.layoutManager.getWorkAreaForMonitor(Main.layoutManager.primaryIndex);
this._childWidth = Math.round(this._childHeight * workArea.width / workArea.height);
return [this._childWidth, this._childWidth];
if (this._orientation == Clutter.Orientation.HORIZONTAL)
return this._getPreferredSizeForOrientation(forHeight);
else
return this._getSizeForOppositeOrientation();
}
vfunc_allocate(box, flags) {
@ -62,15 +95,23 @@ class WorkspaceSwitcherPopupList extends St.Widget {
let childBox = new Clutter.ActorBox();
let rtl = this.text_direction == Clutter.TextDirection.RTL;
let x = rtl ? box.x2 - this._childWidth : box.x1;
let y = box.y1;
let prevChildBoxY2 = box.y1 - this._itemSpacing;
for (let child of this.get_children()) {
childBox.x1 = box.x1;
childBox.x2 = box.x1 + this._childWidth;
childBox.y1 = prevChildBoxY2 + this._itemSpacing;
childBox.x1 = Math.round(x);
childBox.x2 = Math.round(x + this._childWidth);
childBox.y1 = Math.round(y);
childBox.y2 = Math.round(y + this._childHeight);
y += this._childHeight + this._itemSpacing;
prevChildBoxY2 = childBox.y2;
if (this._orientation == Clutter.Orientation.HORIZONTAL) {
if (rtl)
x -= this._childWidth + this._itemSpacing;
else
x += this._childWidth + this._itemSpacing;
} else {
y += this._childHeight + this._itemSpacing;
}
child.allocate(childBox, flags);
}
}
@ -121,6 +162,10 @@ class WorkspaceSwitcherPopup extends St.Widget {
indicator = new St.Bin({ style_class: 'ws-switcher-active-up' });
else if (i == this._activeWorkspaceIndex && this._direction == Meta.MotionDirection.DOWN)
indicator = new St.Bin({ style_class: 'ws-switcher-active-down' });
else if (i == this._activeWorkspaceIndex && this._direction == Meta.MotionDirection.LEFT)
indicator = new St.Bin({ style_class: 'ws-switcher-active-left' });
else if (i == this._activeWorkspaceIndex && this._direction == Meta.MotionDirection.RIGHT)
indicator = new St.Bin({ style_class: 'ws-switcher-active-right' });
else
indicator = new St.Bin({ style_class: 'ws-switcher-box' });