gecko/layout/generic/test/plugin_clipping_lib.js
2009-07-22 12:45:02 +12:00

165 lines
4.6 KiB
JavaScript

var checkClipRegion, checkClipRegionForFrame, checkClipRegionNoBounds;
(function() {
var windowFrameX, windowFrameY;
// Import test API
var is = window.opener.is;
var ok = window.opener.ok;
var todo = window.opener.todo;
var finish = window.opener.SimpleTest.finish;
window.onerror = function (event) { window.opener.onerror(event); window.close(); };
function dumpRect(r) {
return "{" + r.join(",") + "}";
}
function dumpRegion(rects) {
var s = [];
for (var i = 0; i < rects.length; ++i) {
var r = rects[i];
s.push(dumpRect(r));
}
return s.join(", ");
}
function generateSpan(coords) {
coords.sort(function(a,b) { return a - b; });
var result = [coords[0]];
for (var i = 1; i < coords.length; ++i) {
if (coords[i] != coords[i - 1]) {
result.push(coords[i]);
}
}
return result;
}
function containsRect(r1, r2) {
return r1[0] <= r2[0] && r1[2] >= r2[2] &&
r1[1] <= r2[1] && r1[3] >= r2[3];
}
function subtractRect(r1, r2, rlist) {
var spanX = generateSpan([r1[0], r1[2], r2[0], r2[2]]);
var spanY = generateSpan([r1[1], r1[3], r2[1], r2[3]]);
for (var i = 1; i < spanX.length; ++i) {
for (var j = 1; j < spanY.length; ++j) {
var subrect = [spanX[i - 1], spanY[j - 1], spanX[i], spanY[j]];
if (containsRect(r1, subrect) && !containsRect(r2, subrect)) {
rlist.push(subrect);
}
}
}
}
function regionContainsRect(rs, r) {
var rectList = [r];
for (var i = 0; i < rs.length; ++i) {
var newList = [];
for (var j = 0; j < rectList.length; ++j) {
subtractRect(rectList[j], rs[i], newList);
}
if (newList.length == 0)
return true;
rectList = newList;
}
return false;
}
function regionContains(r1s, r2s) {
for (var i = 0; i < r2s.length; ++i) {
if (!regionContainsRect(r1s, r2s[i]))
return false;
}
return true;
}
function equalRegions(r1s, r2s) {
return regionContains(r1s, r2s) && regionContains(r2s, r1s);
}
// Checks that a plugin's clip region equals the specified rectangle list.
// The rectangles are given relative to the plugin's top-left. They are in
// [left, top, right, bottom] format.
function checkClipRegionWithDoc(doc, offsetX, offsetY, id, rects, checkBounds) {
var p = doc.getElementById(id);
var bounds = p.getBoundingClientRect();
var pX = p.getEdge(0);
var pY = p.getEdge(1);
if (checkBounds) {
var pWidth = p.getEdge(2) - pX;
var pHeight = p.getEdge(3) - pY;
is(pX, windowFrameX + bounds.left + offsetX, id + " plugin X");
is(pY, windowFrameY + bounds.top + offsetY, id + " plugin Y");
is(pWidth, bounds.width, id + " plugin width");
is(pHeight, bounds.height, id + " plugin height");
}
// Now check clip region. 'rects' is relative to the plugin's top-left.
var clipRects = [];
var n = p.getClipRegionRectCount();
for (var i = 0; i < n; ++i) {
// Convert the clip rect to be relative to the plugin's top-left.
clipRects[i] = [
p.getClipRegionRectEdge(i, 0) - pX,
p.getClipRegionRectEdge(i, 1) - pY,
p.getClipRegionRectEdge(i, 2) - pX,
p.getClipRegionRectEdge(i, 3) - pY
];
}
ok(equalRegions(clipRects, rects), "Matching regions for '" + id +
"': expected " + dumpRegion(rects) + ", got " + dumpRegion(clipRects));
}
checkClipRegion = function checkClipRegion(id, rects) {
checkClipRegionWithDoc(document, 0, 0, id, rects, true);
}
checkClipRegionForFrame = function checkClipRegionForFrame(fid, id, rects) {
var f = document.getElementById(fid);
var bounds = f.getBoundingClientRect();
checkClipRegionWithDoc(f.contentDocument, bounds.left, bounds.top, id, rects, true);
}
checkClipRegionNoBounds = function checkClipRegionNoBounds(id, rects) {
checkClipRegionWithDoc(document, 0, 0, id, rects, false);
}
function loaded() {
var h1 = document.getElementById("h1");
var h2 = document.getElementById("h2");
var hwidth = h2.boxObject.screenX - h1.boxObject.screenX;
if (hwidth != 100) {
// Maybe it's a DPI issue
todo(false, "Unexpected DPI?");
finish();
window.close();
return;
}
if (!document.getElementById("p1").identifierToStringTest) {
todo(false, "Test plugin not available");
finish();
window.close();
return;
}
var bounds = h1.getBoundingClientRect();
windowFrameX = h1.boxObject.screenX - bounds.left - window.screenX;
windowFrameY = h1.boxObject.screenY - bounds.top - window.screenY;
// Run actual test code
runTests();
finish();
window.close();
}
// Need to run 'loaded' after painting is unsuppressed, or we'll set clip
// regions to empty.
window.addEventListener("load", function () { setTimeout(loaded, 0); }, false);
})();