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screenshot-ui: Add cursor capturing option

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The cursor texture, scale and position is captured separately and
overlaid on top of the preview, and on top of the final screenshot
image. This allows toggling it on and off post-factum.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1954>
This commit is contained in:
Ivan Molodetskikh
2021-08-16 18:12:05 +03:00
committed by Marge Bot
parent 639a346c1e
commit 941774b786
6 changed files with 305 additions and 9 deletions
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134
js/ui/screenshot.js
View File

@ -726,6 +726,10 @@ class UIWindowSelectorWindow extends St.Button {
y_align: Clutter.ActorAlign.CENTER,
});
this._cursor = null;
this._cursorPoint = { x: 0, y: 0 };
this._shouldShowCursor = actor.get_children().some(c => c.has_pointer);
this.connect('destroy', this._onDestroy.bind(this));
}
@ -753,6 +757,13 @@ class UIWindowSelectorWindow extends St.Button {
return [0, 0];
}
get cursorPoint() {
return {
x: this._cursorPoint.x + this._boundingBox.x - this._bufferRect.x,
y: this._cursorPoint.y + this._boundingBox.y - this._bufferRect.y,
};
}
get bufferScale() {
return this._bufferScale;
}
@ -768,6 +779,12 @@ class UIWindowSelectorWindow extends St.Button {
this.remove_child(this._border);
this._border.destroy();
this._border = null;
if (this._cursor) {
this.remove_child(this._cursor);
this._cursor.destroy();
this._cursor = null;
}
}
vfunc_allocate(box) {
@ -799,6 +816,53 @@ class UIWindowSelectorWindow extends St.Button {
windowH * yScale / this._bufferScale
);
this._actor.allocate(actorBox);
// Allocate the cursor if we have one.
if (!this._cursor)
return;
let [, , w, h] = this._cursor.get_preferred_size();
w *= this._cursorScale;
h *= this._cursorScale;
const cursorBox = new Clutter.ActorBox({
x1: this._cursorPoint.x,
y1: this._cursorPoint.y,
x2: this._cursorPoint.x + w,
y2: this._cursorPoint.y + h,
});
cursorBox.x1 *= xScale;
cursorBox.x2 *= xScale;
cursorBox.y1 *= yScale;
cursorBox.y2 *= yScale;
this._cursor.allocate(cursorBox);
}
addCursorTexture(content, point, scale) {
if (!this._shouldShowCursor)
return;
// Add the cursor.
this._cursor = new St.Widget({
content,
request_mode: Clutter.RequestMode.CONTENT_SIZE,
});
this._cursorPoint = {
x: point.x - this._boundingBox.x,
y: point.y - this._boundingBox.y,
};
this._cursorScale = scale;
this.insert_child_below(this._cursor, this._border);
}
setCursorVisible(visible) {
if (!this._cursor)
return;
this._cursor.visible = visible;
}
});
@ -898,6 +962,9 @@ class ScreenshotUI extends St.Widget {
}));
this._stageScreenshotContainer.add_child(this._stageScreenshot);
this._cursor = new St.Widget();
this._stageScreenshotContainer.add_child(this._cursor);
this._openingCoroutineInProgress = false;
this._grabHelper = new GrabHelper.GrabHelper(this, {
actionMode: Shell.ActionMode.POPUP,
@ -1007,6 +1074,30 @@ class ScreenshotUI extends St.Widget {
this._onCaptureButtonClicked.bind(this));
this._bottomRowContainer.add_child(this._captureButton);
this._showPointerButtonContainer = new St.BoxLayout({
x_align: Clutter.ActorAlign.END,
x_expand: true,
});
this._bottomRowContainer.add_child(this._showPointerButtonContainer);
this._showPointerButton = new St.Button({
style_class: 'screenshot-ui-show-pointer-button',
toggle_mode: true,
});
this._showPointerButton.set_child(new St.Icon({ icon_name: 'select-mode-symbolic' }));
this._showPointerButtonContainer.add_child(this._showPointerButton);
this._showPointerButton.connect('notify::checked', () => {
const state = this._showPointerButton.checked;
this._cursor.visible = state;
const windows =
this._windowSelectors.flatMap(selector => selector.windows());
for (const window of windows)
window.setCursorVisible(state);
});
this._cursor.visible = false;
this._monitorBins = [];
this._windowSelectors = [];
this._rebuildMonitorBins();
@ -1131,11 +1222,28 @@ class ScreenshotUI extends St.Widget {
this._openingCoroutineInProgress = true;
try {
const [content, scale] =
const [content, scale, cursorContent, cursorPoint, cursorScale] =
await this._shooter.screenshot_stage_to_content();
this._stageScreenshot.set_content(content);
this._scale = scale;
if (cursorContent !== null) {
this._cursor.set_content(cursorContent);
this._cursor.set_position(cursorPoint.x, cursorPoint.y);
let [, w, h] = cursorContent.get_preferred_size();
w *= cursorScale;
h *= cursorScale;
this._cursor.set_size(w, h);
this._cursorScale = cursorScale;
for (const window of windows) {
window.addCursorTexture(cursorContent, cursorPoint, cursorScale);
window.setCursorVisible(this._showPointerButton.checked);
}
}
this._stageScreenshotContainer.show();
} catch (e) {
log('Error capturing screenshot: %s'.format(e.message));
@ -1183,6 +1291,7 @@ class ScreenshotUI extends St.Widget {
this._stageScreenshotContainer.hide();
this._stageScreenshot.set_content(null);
this._cursor.set_content(null);
this._areaSelector.reset();
for (const selector of this._windowSelectors)
@ -1338,9 +1447,18 @@ class ScreenshotUI extends St.Widget {
const [x, y, w, h] = this._getSelectedGeometry();
let cursorTexture = this._cursor.content?.get_texture();
if (!this._cursor.visible)
cursorTexture = null;
Shell.Screenshot.composite_to_stream(
texture,
x, y, w, h,
this._scale,
cursorTexture ?? null,
this._cursor.x * this._scale,
this._cursor.y * this._scale,
this._cursorScale,
stream
).then(() => {
stream.close(null);
@ -1370,9 +1488,18 @@ class ScreenshotUI extends St.Widget {
const texture = content.get_texture();
const stream = Gio.MemoryOutputStream.new_resizable();
let cursorTexture = this._cursor.content?.get_texture();
if (!this._cursor.visible)
cursorTexture = null;
Shell.Screenshot.composite_to_stream(
texture,
0, 0, -1, -1,
window.bufferScale,
cursorTexture ?? null,
window.cursorPoint.x * window.bufferScale,
window.cursorPoint.y * window.bufferScale,
this._cursorScale,
stream
).then(() => {
stream.close(null);
@ -1416,6 +1543,11 @@ class ScreenshotUI extends St.Widget {
return Clutter.EVENT_STOP;
}
if (symbol === Clutter.KEY_p || symbol === Clutter.KEY_P) {
this._showPointerButton.checked = !this._showPointerButton.checked;
return Clutter.EVENT_STOP;
}
if (symbol === Clutter.KEY_Left || symbol === Clutter.KEY_Right ||
symbol === Clutter.KEY_Up || symbol === Clutter.KEY_Down) {
let direction;