c705b64d67
Point the arrow to the center of the sourceActor's content box, rather than its allocation, in case it has asymmetric padding (as the rightmost message tray summary item does). https://bugzilla.gnome.org/show_bug.cgi?id=641728
411 lines
16 KiB
JavaScript
411 lines
16 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
|
|
|
|
const Clutter = imports.gi.Clutter;
|
|
const Lang = imports.lang;
|
|
const St = imports.gi.St;
|
|
const Shell = imports.gi.Shell;
|
|
|
|
const Tweener = imports.ui.tweener;
|
|
|
|
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().
|
|
*
|
|
*/
|
|
function BoxPointer(side, binProperties) {
|
|
this._init(side, binProperties);
|
|
}
|
|
|
|
BoxPointer.prototype = {
|
|
_init: function(arrowSide, binProperties) {
|
|
this._arrowSide = 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);
|
|
},
|
|
|
|
show: function(animate, onComplete) {
|
|
let x = this.actor.x;
|
|
let y = this.actor.y;
|
|
let themeNode = this.actor.get_theme_node();
|
|
let rise = themeNode.get_length('-arrow-rise');
|
|
|
|
this.actor.opacity = 0;
|
|
this.actor.show();
|
|
|
|
if (animate) {
|
|
switch (this._arrowSide) {
|
|
case St.Side.TOP:
|
|
this.actor.y -= rise;
|
|
break;
|
|
case St.Side.BOTTOM:
|
|
this.actor.y += rise;
|
|
break;
|
|
case St.Side.LEFT:
|
|
this.actor.x -= rise;
|
|
break;
|
|
case St.Side.RIGHT:
|
|
this.actor.x += rise;
|
|
break;
|
|
}
|
|
}
|
|
|
|
Tweener.addTween(this.actor, { opacity: 255,
|
|
x: x,
|
|
y: y,
|
|
transition: "linear",
|
|
onComplete: onComplete,
|
|
time: POPUP_ANIMATION_TIME });
|
|
},
|
|
|
|
hide: function(animate, onComplete) {
|
|
let x = this.actor.x;
|
|
let y = this.actor.y;
|
|
let originalX = this.actor.x;
|
|
let originalY = this.actor.y;
|
|
let themeNode = this.actor.get_theme_node();
|
|
let rise = themeNode.get_length('-arrow-rise');
|
|
|
|
if (animate) {
|
|
switch (this._arrowSide) {
|
|
case St.Side.TOP:
|
|
y += rise;
|
|
break;
|
|
case St.Side.BOTTOM:
|
|
y -= rise;
|
|
break;
|
|
case St.Side.LEFT:
|
|
x += rise;
|
|
break;
|
|
case St.Side.RIGHT:
|
|
x -= rise;
|
|
break;
|
|
}
|
|
}
|
|
|
|
Tweener.addTween(this.actor, { opacity: 0,
|
|
x: x,
|
|
y: y,
|
|
transition: "linear",
|
|
time: POPUP_ANIMATION_TIME,
|
|
onComplete: Lang.bind(this, function () {
|
|
this.actor.hide();
|
|
this.actor.x = originalX;
|
|
this.actor.y = originalY;
|
|
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);
|
|
},
|
|
|
|
_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 borderColor = new Clutter.Color();
|
|
themeNode.get_color('-arrow-border-color', borderColor);
|
|
let backgroundColor = new Clutter.Color();
|
|
themeNode.get_color('-arrow-background-color', backgroundColor);
|
|
|
|
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();
|
|
Clutter.cairo_set_source_color(cr, borderColor);
|
|
|
|
// 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];
|
|
|
|
cr.moveTo(x1 + borderRadius, y1);
|
|
if (this._arrowSide == St.Side.TOP) {
|
|
if (this._arrowOrigin < (x1 + (borderRadius + halfBase))) {
|
|
cr.lineTo(this._arrowOrigin, y1 - rise);
|
|
cr.lineTo(Math.max(x1 + borderRadius, this._arrowOrigin) + halfBase, y1);
|
|
} else if (this._arrowOrigin > (x2 - (borderRadius + halfBase))) {
|
|
cr.lineTo(Math.min(x2 - borderRadius, this._arrowOrigin) - halfBase, y1);
|
|
cr.lineTo(this._arrowOrigin, y1 - rise);
|
|
} else {
|
|
cr.lineTo(this._arrowOrigin - halfBase, y1);
|
|
cr.lineTo(this._arrowOrigin, y1 - rise);
|
|
cr.lineTo(this._arrowOrigin + halfBase, y1);
|
|
}
|
|
}
|
|
|
|
cr.lineTo(x2 - borderRadius, y1);
|
|
|
|
// top-right corner
|
|
cr.arc(x2 - borderRadius, y1 + borderRadius, borderRadius,
|
|
3*Math.PI/2, Math.PI*2);
|
|
|
|
if (this._arrowSide == St.Side.RIGHT) {
|
|
if (this._arrowOrigin < (y1 + (borderRadius + halfBase))) {
|
|
cr.lineTo(x2 + rise, this._arrowOrigin);
|
|
cr.lineTo(x2, Math.max(y1 + borderRadius, this._arrowOrigin) + halfBase);
|
|
} else if (this._arrowOrigin > (y2 - (borderRadius + halfBase))) {
|
|
cr.lineTo(x2, Math.min(y2 - borderRadius, this._arrowOrigin) - halfBase);
|
|
cr.lineTo(x2 + rise, this._arrowOrigin);
|
|
} else {
|
|
cr.lineTo(x2, this._arrowOrigin - halfBase);
|
|
cr.lineTo(x2 + rise, this._arrowOrigin);
|
|
cr.lineTo(x2, this._arrowOrigin + halfBase);
|
|
}
|
|
}
|
|
|
|
cr.lineTo(x2, y2 - borderRadius);
|
|
|
|
// bottom-right corner
|
|
cr.arc(x2 - borderRadius, y2 - borderRadius, borderRadius,
|
|
0, Math.PI/2);
|
|
|
|
if (this._arrowSide == St.Side.BOTTOM) {
|
|
if (this._arrowOrigin < (x1 + (borderRadius + halfBase))) {
|
|
cr.lineTo(Math.max(x1 + borderRadius, this._arrowOrigin) + halfBase, y2);
|
|
cr.lineTo(this._arrowOrigin, y2 + rise);
|
|
} else if (this._arrowOrigin > (x2 - (borderRadius + halfBase))) {
|
|
cr.lineTo(this._arrowOrigin, y2 + rise);
|
|
cr.lineTo(Math.min(x2 - borderRadius, this._arrowOrigin) - halfBase, y2);
|
|
} else {
|
|
cr.lineTo(this._arrowOrigin + halfBase, y2);
|
|
cr.lineTo(this._arrowOrigin, y2 + rise);
|
|
cr.lineTo(this._arrowOrigin - halfBase, y2);
|
|
}
|
|
}
|
|
|
|
cr.lineTo(x1 + borderRadius, y2);
|
|
|
|
// bottom-left corner
|
|
cr.arc(x1 + borderRadius, y2 - borderRadius, borderRadius,
|
|
Math.PI/2, Math.PI);
|
|
|
|
if (this._arrowSide == St.Side.LEFT) {
|
|
if (this._arrowOrigin < (y1 + (borderRadius + halfBase))) {
|
|
cr.lineTo(x1, Math.max(y1 + borderRadius, this._arrowOrigin) + halfBase);
|
|
cr.lineTo(x1 - rise, this._arrowOrigin);
|
|
} else if (this._arrowOrigin > (y2 - (borderRadius + halfBase))) {
|
|
cr.lineTo(x1 - rise, this._arrowOrigin);
|
|
cr.lineTo(x1, Math.min(y2 - borderRadius, this._arrowOrigin) - halfBase);
|
|
} else {
|
|
cr.lineTo(x1, this._arrowOrigin + halfBase);
|
|
cr.lineTo(x1 - rise, this._arrowOrigin);
|
|
cr.lineTo(x1, this._arrowOrigin - halfBase);
|
|
}
|
|
}
|
|
|
|
cr.lineTo(x1, y1 + borderRadius);
|
|
|
|
// top-left corner
|
|
cr.arc(x1 + borderRadius, y1 + borderRadius, borderRadius,
|
|
Math.PI, 3*Math.PI/2);
|
|
|
|
Clutter.cairo_set_source_color(cr, backgroundColor);
|
|
cr.fillPreserve();
|
|
Clutter.cairo_set_source_color(cr, borderColor);
|
|
cr.setLineWidth(borderWidth);
|
|
cr.stroke();
|
|
},
|
|
|
|
setPosition: function(sourceActor, gap, alignment) {
|
|
// We need to show it now to force an allocation,
|
|
// so that we can query the correct size.
|
|
this.actor.show();
|
|
|
|
// Position correctly relative to the sourceActor
|
|
let sourceNode = sourceActor.get_theme_node();
|
|
let sourceContentBox = sourceNode.get_content_box(sourceActor.get_allocation_box());
|
|
let [sourceX, sourceY] = sourceActor.get_transformed_position();
|
|
let [sourceWidth, sourceHeight] = sourceActor.get_transformed_size();
|
|
let sourceCenterX = sourceX + sourceContentBox.x1 + (sourceContentBox.x2 - sourceContentBox.x1) / 2;
|
|
let sourceCenterY = sourceY + sourceContentBox.y1 + (sourceContentBox.y2 - sourceContentBox.y1) / 2;
|
|
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 primary = global.get_primary_monitor();
|
|
let themeNode = this.actor.get_theme_node();
|
|
let halfBorder = themeNode.get_length('-arrow-border-width') / 2;
|
|
let halfBase = themeNode.get_length('-arrow-base') / 2;
|
|
let borderRadius = themeNode.get_length('-arrow-border-radius');
|
|
|
|
let resX, resY;
|
|
|
|
switch (this._arrowSide) {
|
|
case St.Side.TOP:
|
|
resY = sourceY + sourceHeight + gap;
|
|
break;
|
|
case St.Side.BOTTOM:
|
|
resY = sourceY - natHeight - gap;
|
|
break;
|
|
case St.Side.LEFT:
|
|
resX = sourceX + sourceWidth + gap;
|
|
break;
|
|
case St.Side.RIGHT:
|
|
resX = sourceX - natWidth - gap;
|
|
break;
|
|
}
|
|
|
|
// Now align and position the pointing axis, making sure
|
|
// it fits on screen
|
|
switch (this._arrowSide) {
|
|
case St.Side.TOP:
|
|
case St.Side.BOTTOM:
|
|
switch (alignment) {
|
|
case St.Align.START:
|
|
resX = sourceCenterX - (halfBase + borderRadius + halfBorder);
|
|
break;
|
|
case St.Align.MIDDLE:
|
|
resX = sourceCenterX - (natWidth / 2);
|
|
break;
|
|
case St.Align.END:
|
|
resX = sourceCenterX - natWidth + (halfBase + borderRadius + halfBorder);
|
|
break;
|
|
}
|
|
|
|
resX = Math.max(resX, primary.x + 10);
|
|
resX = Math.min(resX, primary.x + primary.width - (10 + natWidth));
|
|
this.setArrowOrigin(sourceCenterX - resX);
|
|
break;
|
|
|
|
case St.Side.LEFT:
|
|
case St.Side.RIGHT:
|
|
switch (alignment) {
|
|
case St.Align.START:
|
|
resY = sourceCenterY - (halfBase + borderRadius + halfBorder);
|
|
break;
|
|
case St.Align.MIDDLE:
|
|
resY = sourceCenterY - (natHeight / 2);
|
|
break;
|
|
case St.Align.END:
|
|
resY = sourceCenterY - natHeight + (halfBase + borderRadius + halfBorder);
|
|
break;
|
|
}
|
|
|
|
resY = Math.max(resY, primary.y + 10);
|
|
resY = Math.min(resY, primary.y + primary.height - (10 + natHeight));
|
|
|
|
this.setArrowOrigin(sourceCenterY - resY);
|
|
break;
|
|
}
|
|
|
|
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();
|
|
}
|
|
|
|
// Actually set the position
|
|
this.actor.x = Math.floor(x);
|
|
this.actor.y = Math.floor(y);
|
|
},
|
|
|
|
// @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();
|
|
}
|
|
}
|
|
};
|