Merge pull request #12712 from Snuffleupagus/issue-12704
Attempt to handle collapsed outline items, in the default viewer, according to the specification (issue 12704, PR 10890 follow-up)
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commit
93b3ba2abb
@ -95,7 +95,23 @@ class PDFOutlineViewer extends BaseTreeViewer {
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* @private
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*/
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_addToggleButton(div, { count, items }) {
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const hidden = count < 0 && Math.abs(count) === items.length;
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let hidden = false;
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if (count < 0) {
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let totalCount = items.length;
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if (totalCount > 0) {
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const queue = [...items];
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while (queue.length > 0) {
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const { count: nestedCount, items: nestedItems } = queue.shift();
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if (nestedCount > 0 && nestedItems.length > 0) {
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totalCount += nestedItems.length;
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queue.push(...nestedItems);
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}
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}
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}
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if (Math.abs(count) === totalCount) {
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hidden = true;
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}
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}
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super._addToggleButton(div, hidden);
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}
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