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gnome-shell/js/ui/boxpointer.js
Florian Müllner 98b313c75f popupMenu: Overwrite ongoing animations when calling close repeatedly 
Currently close() is a no-op when the menu has already been closed.
However, repeated calls could pass different animation parameters.
For instance in the user menu, we try to hide the menu immediately
before locking the screen, to avoid the popup jumping across the
screen while fading out - as we do this from the corresponding
item's activate handler, the closing is still animated if the menu's
own handler (which requests a full animation) is run first.
Fix this by changing close() to overwrite ongoing animations before
bailing out early.

https://bugzilla.gnome.org/show_bug.cgi?id=686484
2012-10-23 22:21:45 +02:00

623 lines
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JavaScript
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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Clutter = imports.gi.Clutter;
const Lang = imports.lang;
const Meta = imports.gi.Meta;
const St = imports.gi.St;
const Shell = imports.gi.Shell;
const Main = imports.ui.main;
const Tweener = imports.ui.tweener;
const PopupAnimation = {
NONE: 0,
SLIDE: 1 << 0,
FADE: 1 << 1,
FULL: ~0,
};
const POPUP_ANIMATION_TIME = 0.15;
/**
* BoxPointer:
* @side: side to draw the arrow on
* @binProperties: Properties to set on contained bin
*
* An actor which displays a triangle "arrow" pointing to a given
* side. The .bin property is a container in which content can be
* placed. The arrow position may be controlled via
* setArrowOrigin(). The arrow side might be temporarily flipped
* depending on the box size and source position to keep the box
* totally inside the monitor if possible.
*
*/
const BoxPointer = new Lang.Class({
Name: 'BoxPointer',
_init: function(arrowSide, binProperties) {
this._arrowSide = arrowSide;
this._userArrowSide = arrowSide;
this._arrowOrigin = 0;
this.actor = new St.Bin({ x_fill: true,
y_fill: true });
this._container = new Shell.GenericContainer();
this.actor.set_child(this._container);
this._container.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
this._container.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
this._container.connect('allocate', Lang.bind(this, this._allocate));
this.bin = new St.Bin(binProperties);
this._container.add_actor(this.bin);
this._border = new St.DrawingArea();
this._border.connect('repaint', Lang.bind(this, this._drawBorder));
this._container.add_actor(this._border);
this.bin.raise(this._border);
this._xOffset = 0;
this._yOffset = 0;
this._xPosition = 0;
this._yPosition = 0;
this._sourceAlignment = 0.5;
this._capturedEventId = 0;
this._muteInput();
},
_muteInput: function() {
if (this._capturedEventId == 0)
this._capturedEventId = this.actor.connect('captured-event',
function() { return true; });
},
_unmuteInput: function() {
if (this._capturedEventId != 0) {
this.actor.disconnect(this._capturedEventId);
this._capturedEventId = 0;
}
},
show: function(animate, onComplete) {
let themeNode = this.actor.get_theme_node();
let rise = themeNode.get_length('-arrow-rise');
let animationTime = (animate & PopupAnimation.FULL) ? POPUP_ANIMATION_TIME : 0;
if (animate & PopupAnimation.FADE)
this.opacity = 0;
else
this.opacity = 255;
this.actor.show();
if (animate & PopupAnimation.SLIDE) {
switch (this._arrowSide) {
case St.Side.TOP:
this.yOffset = -rise;
break;
case St.Side.BOTTOM:
this.yOffset = rise;
break;
case St.Side.LEFT:
this.xOffset = -rise;
break;
case St.Side.RIGHT:
this.xOffset = rise;
break;
}
}
Tweener.addTween(this, { opacity: 255,
xOffset: 0,
yOffset: 0,
transition: 'linear',
onComplete: Lang.bind(this, function() {
this._unmuteInput();
if (onComplete)
onComplete();
}),
time: animationTime });
},
hide: function(animate, onComplete) {
let xOffset = 0;
let yOffset = 0;
let themeNode = this.actor.get_theme_node();
let rise = themeNode.get_length('-arrow-rise');
let fade = (animate & PopupAnimation.FADE);
let animationTime = (animate & PopupAnimation.FULL) ? POPUP_ANIMATION_TIME : 0;
if (animate & PopupAnimation.SLIDE) {
switch (this._arrowSide) {
case St.Side.TOP:
yOffset = rise;
break;
case St.Side.BOTTOM:
yOffset = -rise;
break;
case St.Side.LEFT:
xOffset = rise;
break;
case St.Side.RIGHT:
xOffset = -rise;
break;
}
}
this._muteInput();
Tweener.removeTweens(this);
Tweener.addTween(this, { opacity: fade ? 0 : 255,
xOffset: xOffset,
yOffset: yOffset,
transition: 'linear',
time: animationTime,
onComplete: Lang.bind(this, function () {
this.actor.hide();
this.opacity = 0;
this.xOffset = 0;
this.yOffset = 0;
if (onComplete)
onComplete();
})
});
},
_adjustAllocationForArrow: function(isWidth, alloc) {
let themeNode = this.actor.get_theme_node();
let borderWidth = themeNode.get_length('-arrow-border-width');
alloc.min_size += borderWidth * 2;
alloc.natural_size += borderWidth * 2;
if ((!isWidth && (this._arrowSide == St.Side.TOP || this._arrowSide == St.Side.BOTTOM))
|| (isWidth && (this._arrowSide == St.Side.LEFT || this._arrowSide == St.Side.RIGHT))) {
let rise = themeNode.get_length('-arrow-rise');
alloc.min_size += rise;
alloc.natural_size += rise;
}
},
_getPreferredWidth: function(actor, forHeight, alloc) {
let [minInternalSize, natInternalSize] = this.bin.get_preferred_width(forHeight);
alloc.min_size = minInternalSize;
alloc.natural_size = natInternalSize;
this._adjustAllocationForArrow(true, alloc);
},
_getPreferredHeight: function(actor, forWidth, alloc) {
let [minSize, naturalSize] = this.bin.get_preferred_height(forWidth);
alloc.min_size = minSize;
alloc.natural_size = naturalSize;
this._adjustAllocationForArrow(false, alloc);
},
_allocate: function(actor, box, flags) {
let themeNode = this.actor.get_theme_node();
let borderWidth = themeNode.get_length('-arrow-border-width');
let rise = themeNode.get_length('-arrow-rise');
let childBox = new Clutter.ActorBox();
let availWidth = box.x2 - box.x1;
let availHeight = box.y2 - box.y1;
childBox.x1 = 0;
childBox.y1 = 0;
childBox.x2 = availWidth;
childBox.y2 = availHeight;
this._border.allocate(childBox, flags);
childBox.x1 = borderWidth;
childBox.y1 = borderWidth;
childBox.x2 = availWidth - borderWidth;
childBox.y2 = availHeight - borderWidth;
switch (this._arrowSide) {
case St.Side.TOP:
childBox.y1 += rise;
break;
case St.Side.BOTTOM:
childBox.y2 -= rise;
break;
case St.Side.LEFT:
childBox.x1 += rise;
break;
case St.Side.RIGHT:
childBox.x2 -= rise;
break;
}
this.bin.allocate(childBox, flags);
if (this._sourceActor && this._sourceActor.mapped) {
this._reposition(this._sourceActor, this._arrowAlignment);
if (this._shouldFlip()) {
switch (this._arrowSide) {
case St.Side.TOP:
this._arrowSide = St.Side.BOTTOM;
break;
case St.Side.BOTTOM:
this._arrowSide = St.Side.TOP;
break;
case St.Side.LEFT:
this._arrowSide = St.Side.RIGHT;
break;
case St.Side.RIGHT:
this._arrowSide = St.Side.LEFT;
break;
}
this._reposition(this._sourceActor, this._arrowAlignment);
}
}
},
_drawBorder: function(area) {
let themeNode = this.actor.get_theme_node();
let borderWidth = themeNode.get_length('-arrow-border-width');
let base = themeNode.get_length('-arrow-base');
let rise = themeNode.get_length('-arrow-rise');
let borderRadius = themeNode.get_length('-arrow-border-radius');
let halfBorder = borderWidth / 2;
let halfBase = Math.floor(base/2);
let backgroundColor = themeNode.get_color('-arrow-background-color');
let [width, height] = area.get_surface_size();
let [boxWidth, boxHeight] = [width, height];
if (this._arrowSide == St.Side.TOP || this._arrowSide == St.Side.BOTTOM) {
boxHeight -= rise;
} else {
boxWidth -= rise;
}
let cr = area.get_context();
// Translate so that box goes from 0,0 to boxWidth,boxHeight,
// with the arrow poking out of that
if (this._arrowSide == St.Side.TOP) {
cr.translate(0, rise);
} else if (this._arrowSide == St.Side.LEFT) {
cr.translate(rise, 0);
}
let [x1, y1] = [halfBorder, halfBorder];
let [x2, y2] = [boxWidth - halfBorder, boxHeight - halfBorder];
let skipTopLeft = false;
let skipTopRight = false;
let skipBottomLeft = false;
let skipBottomRight = false;
switch (this._arrowSide) {
case St.Side.TOP:
if (this._arrowOrigin == x1)
skipTopLeft = true;
else if (this._arrowOrigin == x2)
skipTopRight = true;
break;
case St.Side.RIGHT:
if (this._arrowOrigin == y1)
skipTopRight = true;
else if (this._arrowOrigin == y2)
skipBottomRight = true;
break;
case St.Side.BOTTOM:
if (this._arrowOrigin == x1)
skipBottomLeft = true;
else if (this._arrowOrigin == x2)
skipBottomRight = true;
break;
case St.Side.LEFT:
if (this._arrowOrigin == y1)
skipTopLeft = true;
else if (this._arrowOrigin == y2)
skipBottomLeft = true;
break;
}
cr.moveTo(x1 + borderRadius, y1);
if (this._arrowSide == St.Side.TOP) {
if (skipTopLeft) {
cr.moveTo(x1, y2 - borderRadius);
cr.lineTo(x1, y1 - rise);
cr.lineTo(x1 + halfBase, y1);
} else if (skipTopRight) {
cr.lineTo(x2 - halfBase, y1);
cr.lineTo(x2, y1 - rise);
cr.lineTo(x2, y1 + borderRadius);
} else {
cr.lineTo(this._arrowOrigin - halfBase, y1);
cr.lineTo(this._arrowOrigin, y1 - rise);
cr.lineTo(this._arrowOrigin + halfBase, y1);
}
}
if (!skipTopRight) {
cr.lineTo(x2 - borderRadius, y1);
cr.arc(x2 - borderRadius, y1 + borderRadius, borderRadius,
3*Math.PI/2, Math.PI*2);
}
if (this._arrowSide == St.Side.RIGHT) {
if (skipTopRight) {
cr.lineTo(x2 + rise, y1);
cr.lineTo(x2 + rise, y1 + halfBase);
} else if (skipBottomRight) {
cr.lineTo(x2, y2 - halfBase);
cr.lineTo(x2 + rise, y2);
cr.lineTo(x2 - borderRadius, y2);
} else {
cr.lineTo(x2, this._arrowOrigin - halfBase);
cr.lineTo(x2 + rise, this._arrowOrigin);
cr.lineTo(x2, this._arrowOrigin + halfBase);
}
}
if (!skipBottomRight) {
cr.lineTo(x2, y2 - borderRadius);
cr.arc(x2 - borderRadius, y2 - borderRadius, borderRadius,
0, Math.PI/2);
}
if (this._arrowSide == St.Side.BOTTOM) {
if (skipBottomLeft) {
cr.lineTo(x1 + halfBase, y2);
cr.lineTo(x1, y2 + rise);
cr.lineTo(x1, y2 - borderRadius);
} else if (skipBottomRight) {
cr.lineTo(x2, y2 + rise);
cr.lineTo(x2 - halfBase, y2);
} else {
cr.lineTo(this._arrowOrigin + halfBase, y2);
cr.lineTo(this._arrowOrigin, y2 + rise);
cr.lineTo(this._arrowOrigin - halfBase, y2);
}
}
if (!skipBottomLeft) {
cr.lineTo(x1 + borderRadius, y2);
cr.arc(x1 + borderRadius, y2 - borderRadius, borderRadius,
Math.PI/2, Math.PI);
}
if (this._arrowSide == St.Side.LEFT) {
if (skipTopLeft) {
cr.lineTo(x1, y1 + halfBase);
cr.lineTo(x1 - rise, y1);
cr.lineTo(x1 + borderRadius, y1);
} else if (skipBottomLeft) {
cr.lineTo(x1 - rise, y2)
cr.lineTo(x1 - rise, y2 - halfBase);
} else {
cr.lineTo(x1, this._arrowOrigin + halfBase);
cr.lineTo(x1 - rise, this._arrowOrigin);
cr.lineTo(x1, this._arrowOrigin - halfBase);
}
}
if (!skipTopLeft) {
cr.lineTo(x1, y1 + borderRadius);
cr.arc(x1 + borderRadius, y1 + borderRadius, borderRadius,
Math.PI, 3*Math.PI/2);
}
Clutter.cairo_set_source_color(cr, backgroundColor);
cr.fillPreserve();
if (borderWidth > 0) {
let borderColor = themeNode.get_color('-arrow-border-color');
Clutter.cairo_set_source_color(cr, borderColor);
cr.setLineWidth(borderWidth);
cr.stroke();
}
},
setPosition: function(sourceActor, alignment) {
this._arrowSide = this._userArrowSide;
// We need to show it now to force an allocation,
// so that we can query the correct size.
this.actor.show();
this._sourceActor = sourceActor;
this._arrowAlignment = alignment;
this._reposition(sourceActor, alignment);
},
setSourceAlignment: function(alignment) {
this._sourceAlignment = alignment;
if (!this._sourceActor)
return;
this.setPosition(this._sourceActor, this._arrowAlignment);
},
_reposition: function(sourceActor, alignment) {
// Position correctly relative to the sourceActor
let sourceNode = sourceActor.get_theme_node();
let sourceContentBox = sourceNode.get_content_box(sourceActor.get_allocation_box());
let sourceAllocation = Shell.util_get_transformed_allocation(sourceActor);
let sourceCenterX = sourceAllocation.x1 + sourceContentBox.x1 + (sourceContentBox.x2 - sourceContentBox.x1) * this._sourceAlignment;
let sourceCenterY = sourceAllocation.y1 + sourceContentBox.y1 + (sourceContentBox.y2 - sourceContentBox.y1) * this._sourceAlignment;
let [minWidth, minHeight, natWidth, natHeight] = this.actor.get_preferred_size();
// We also want to keep it onscreen, and separated from the
// edge by the same distance as the main part of the box is
// separated from its sourceActor
let monitor = Main.layoutManager.findMonitorForActor(sourceActor);
let themeNode = this.actor.get_theme_node();
let borderWidth = themeNode.get_length('-arrow-border-width');
let arrowBase = themeNode.get_length('-arrow-base');
let borderRadius = themeNode.get_length('-arrow-border-radius');
let margin = (4 * borderRadius + borderWidth + arrowBase);
let gap = themeNode.get_length('-boxpointer-gap');
let padding = themeNode.get_length('-arrow-rise');
let resX, resY;
switch (this._arrowSide) {
case St.Side.TOP:
resY = sourceAllocation.y2 + gap;
break;
case St.Side.BOTTOM:
resY = sourceAllocation.y1 - natHeight - gap;
break;
case St.Side.LEFT:
resX = sourceAllocation.x2 + gap;
break;
case St.Side.RIGHT:
resX = sourceAllocation.x1 - natWidth - gap;
break;
}
// Now align and position the pointing axis, making sure it fits on
// screen. If the arrowOrigin is so close to the edge that the arrow
// will not be isosceles, we try to compensate as follows:
// - We skip the rounded corner and settle for a right angled arrow
// as shown below. See _drawBorder for further details.
// |\_____
// |
// |
// - If the arrow was going to be acute angled, we move the position
// of the box to maintain the arrow's accuracy.
let arrowOrigin;
let halfBase = Math.floor(arrowBase/2);
let halfBorder = borderWidth / 2;
let halfMargin = margin / 2;
let [x1, y1] = [halfBorder, halfBorder];
let [x2, y2] = [natWidth - halfBorder, natHeight - halfBorder];
switch (this._arrowSide) {
case St.Side.TOP:
case St.Side.BOTTOM:
resX = sourceCenterX - (halfMargin + (natWidth - margin) * alignment);
resX = Math.max(resX, monitor.x + padding);
resX = Math.min(resX, monitor.x + monitor.width - (padding + natWidth));
arrowOrigin = sourceCenterX - resX;
if (arrowOrigin <= (x1 + (borderRadius + halfBase))) {
if (arrowOrigin > x1)
resX += (arrowOrigin - x1);
arrowOrigin = x1;
} else if (arrowOrigin >= (x2 - (borderRadius + halfBase))) {
if (arrowOrigin < x2)
resX -= (x2 - arrowOrigin);
arrowOrigin = x2;
}
break;
case St.Side.LEFT:
case St.Side.RIGHT:
resY = sourceCenterY - (halfMargin + (natHeight - margin) * alignment);
resY = Math.max(resY, monitor.y + padding);
resY = Math.min(resY, monitor.y + monitor.height - (padding + natHeight));
arrowOrigin = sourceCenterY - resY;
if (arrowOrigin <= (y1 + (borderRadius + halfBase))) {
if (arrowOrigin > y1)
resY += (arrowOrigin - y1);
arrowOrigin = y1;
} else if (arrowOrigin >= (y2 - (borderRadius + halfBase))) {
if (arrowOrigin < y2)
resX -= (y2 - arrowOrigin);
arrowOrigin = y2;
}
break;
}
this.setArrowOrigin(arrowOrigin);
let parent = this.actor.get_parent();
let success, x, y;
while (!success) {
[success, x, y] = parent.transform_stage_point(resX, resY);
parent = parent.get_parent();
}
this._xPosition = Math.floor(x);
this._yPosition = Math.floor(y);
this._shiftActor();
},
// @origin: Coordinate specifying middle of the arrow, along
// the Y axis for St.Side.LEFT, St.Side.RIGHT from the top and X axis from
// the left for St.Side.TOP and St.Side.BOTTOM.
setArrowOrigin: function(origin) {
if (this._arrowOrigin != origin) {
this._arrowOrigin = origin;
this._border.queue_repaint();
}
},
_shiftActor : function() {
// Since the position of the BoxPointer depends on the allocated size
// of the BoxPointer and the position of the source actor, trying
// to position the BoxPoiner via the x/y properties will result in
// allocation loops and warnings. Instead we do the positioning via
// the anchor point, which is independent of allocation, and leave
// x == y == 0.
this.actor.set_anchor_point(-(this._xPosition + this._xOffset),
-(this._yPosition + this._yOffset));
},
_shouldFlip: function() {
let sourceAllocation = Shell.util_get_transformed_allocation(this._sourceActor);
let boxAllocation = Shell.util_get_transformed_allocation(this.actor);
let boxWidth = boxAllocation.x2 - boxAllocation.x1;
let boxHeight = boxAllocation.y2 - boxAllocation.y1;
let monitor = Main.layoutManager.findMonitorForActor(this.actor);
switch (this._arrowSide) {
case St.Side.TOP:
if (boxAllocation.y2 > monitor.y + monitor.height &&
boxHeight < sourceAllocation.y1 - monitor.y)
return true;
break;
case St.Side.BOTTOM:
if (boxAllocation.y1 < monitor.y &&
boxHeight < monitor.y + monitor.height - sourceAllocation.y2)
return true;
break;
case St.Side.LEFT:
if (boxAllocation.x2 > monitor.x + monitor.width &&
boxWidth < sourceAllocation.x1 - monitor.x)
return true;
break;
case St.Side.RIGHT:
if (boxAllocation.x1 < monitor.x &&
boxWidth < monitor.x + monitor.width - sourceAllocation.x2)
return true;
break;
}
return false;
},
set xOffset(offset) {
this._xOffset = offset;
this._shiftActor();
},
get xOffset() {
return this._xOffset;
},
set yOffset(offset) {
this._yOffset = offset;
this._shiftActor();
},
get yOffset() {
return this._yOffset;
},
set opacity(opacity) {
this.actor.opacity = opacity;
},
get opacity() {
return this.actor.opacity;
}
});
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