Files
ObsiGate/frontend/js/pane-manager.js
T
bruno 93d0bda627 feat: PDF support + Split View (P1 roadmap items)
#74 — Support PDF complet:
- backend/pdf_reader.py — pymupdf/pypdf text extraction
- .pdf added to SUPPORTED_EXTENSIONS in indexer.py
- PDF-aware file view API endpoint (metadata, text preview)
- Streaming endpoint /api/file/{vault}/pdf/stream
- Frontend PDF viewer with iframe, toolbar, download
- CSS for PDF viewer container

#75 — Split View (PaneManager):
- New module frontend/js/pane-manager.js — ES module
- 1-4 pane CSS grid with resize handles
- Split right/down via keyboard (Ctrl+Alt+\) or PaneManager API
- Persistence in localStorage (obsigate-panes)
- Collapse to single pane, per-pane active state

285 tests passent
2026-07-23 17:33:51 -04:00

264 lines
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/**
* PaneManager — Multi-pane split view for ObsiGate (v2.0.0-dev)
* Supports 1–4 panes in CSS grid, split right/down, resize, drag tabs between panes.
* Integrates with existing TabManager singleton.
*/
const PANE_MAX = 4;
const PaneManager = {
panes: [],
activePaneId: 0,
_paneCounter: 1,
layout: 'horizontal',
init() {
const saved = localStorage.getItem('obsigate-panes');
if (saved) {
try {
const data = JSON.parse(saved);
if (data.panes && data.panes.length >= 2) {
this.layout = data.layout || 'horizontal';
this._paneCounter = data.panes.length;
this._buildGrid(data.panes.length);
data.panes.forEach((p, i) => {
this.panes[i].activeTab = p.activeTab;
this.panes[i].width = p.width;
});
this.activePaneId = data.panes[0].id;
this._applyResize();
return;
}
} catch (e) { /* ignore */ }
}
},
_buildGrid(n) {
const wrapper = document.querySelector('.content-wrapper');
const origTabBar = document.getElementById('tab-bar');
const origContent = document.getElementById('content-area');
if (!wrapper || !origContent || n < 2) return;
// Create grid container
const grid = document.createElement('div');
grid.className = 'pane-grid';
if (n === 2) grid.style.gridTemplateColumns = this.layout === 'horizontal' ? '1fr 4px 1fr' : '1fr';
if (n >= 3) grid.style.gridTemplateColumns = '1fr 4px 1fr';
if (n === 4) grid.style.gridTemplateRows = '1fr 4px 1fr';
wrapper.innerHTML = '';
wrapper.appendChild(grid);
for (let i = 0; i < Math.min(n, PANE_MAX); i++) {
const pane = this._createPane(i, grid, i === 0 ? origTabBar : null, i === 0 ? origContent : null);
this.panes.push(pane);
if (i < n - 1) {
const handle = document.createElement('div');
handle.className = 'pane-resize-handle';
if (this.layout === 'horizontal') handle.style.cursor = 'col-resize';
else handle.style.cursor = 'row-resize';
handle.addEventListener('mousedown', (e) => this._onResizeStart(e, i, i + 1));
handle.addEventListener('dblclick', () => this._resetResize(i, i + 1));
grid.appendChild(handle);
}
}
this.activePaneId = 0;
this._highlightActive();
},
_createPane(idx, grid, reuseTabBar, reuseContent) {
const container = document.createElement('div');
container.className = 'pane-container';
container.dataset.pane = idx;
if (reuseTabBar && reuseContent) {
// Pane 0 reuses existing DOM
container.appendChild(reuseTabBar);
container.appendChild(reuseContent);
reuseContent.id = 'content-area-0';
} else {
const tabBar = document.createElement('div');
tabBar.className = 'tab-bar pane-tab-bar';
tabBar.id = 'tab-bar-' + idx;
tabBar.innerHTML = '<div class="tab-list" id="tab-list-' + idx + '"></div>';
const content = document.createElement('main');
content.className = 'content-area pane-content';
content.id = 'content-area-' + idx;
container.appendChild(tabBar);
container.appendChild(content);
}
container.addEventListener('click', () => {
this.activePaneId = idx;
this._highlightActive();
});
grid.appendChild(container);
return { id: idx, element: container, width: 100 / this.panes.length + '%' };
},
_highlightActive() {
this.panes.forEach((p, i) => {
p.element.classList.toggle('pane-active', i === this.activePaneId);
});
},
splitRight() {
if (this.panes.length >= PANE_MAX) return;
if (this.panes.length === 0) {
// First split: promote single pane to grid
this._buildGrid(2);
} else {
this._addPane();
}
this._persist();
},
splitDown() {
if (this.panes.length >= PANE_MAX) return;
this.layout = 'vertical';
if (this.panes.length === 0) {
this._buildGrid(2);
} else {
this._addPane();
}
this._persist();
},
_addPane() {
const grid = document.querySelector('.pane-grid');
if (!grid) return;
const n = this.panes.length + 1;
const handle = document.createElement('div');
handle.className = 'pane-resize-handle';
handle.addEventListener('mousedown', (e) => this._onResizeStart(e, n - 2, n - 1));
grid.appendChild(handle);
const pane = this._createPane(n - 1, grid, null, null);
this.panes.push(pane);
this.activePaneId = n - 1;
this._highlightActive();
if (n <= 2) grid.style.gridTemplateColumns = '1fr 4px 1fr';
else if (n === 4) grid.style.gridTemplateRows = '1fr 4px 1fr';
},
closePane(paneId) {
if (this.panes.length <= 1) return;
const idx = this.panes.findIndex(p => p.id === paneId);
if (idx < 0) return;
// Remove pane and its resize handles
this.panes[idx].element.remove();
const handles = document.querySelectorAll('.pane-resize-handle');
if (handles[idx]) handles[idx].remove();
else if (handles[idx - 1]) handles[idx - 1].remove();
this.panes.splice(idx, 1);
if (this.panes.length <= 1) {
this._collapseToSingle();
} else {
this.activePaneId = Math.min(this.activePaneId, this.panes.length - 1);
this._highlightActive();
}
this._persist();
},
_collapseToSingle() {
const grid = document.querySelector('.pane-grid');
if (!grid) return;
const wrapper = grid.parentElement;
const pane0 = this.panes[0];
wrapper.innerHTML = '';
const tabBar = pane0.element.querySelector('.tab-bar') || document.getElementById('tab-bar-0');
const content = pane0.element.querySelector('.content-area') || document.getElementById('content-area-0');
if (tabBar) wrapper.appendChild(tabBar);
if (content) wrapper.appendChild(content);
this.panes = [];
this.activePaneId = 0;
},
_onResizeStart(e, leftIdx, rightIdx) {
e.preventDefault();
const grid = document.querySelector('.pane-grid');
const startX = e.clientX;
const startY = e.clientY;
const totalSize = this.layout === 'horizontal' ? grid.offsetWidth : grid.offsetHeight;
const onMove = (ev) => {
const delta = this.layout === 'horizontal' ? ev.clientX - startX : ev.clientY - startY;
const pct = (delta / totalSize) * 100;
const leftEl = this.panes[leftIdx].element;
const rightEl = this.panes[rightIdx].element;
const curLeft = parseFloat(leftEl.style.flexBasis || leftEl.style.width || '50');
const curRight = parseFloat(rightEl.style.flexBasis || rightEl.style.width || '50');
const newLeft = Math.max(20, Math.min(80, curLeft + pct));
const newRight = 100 - newLeft;
leftEl.style.flexBasis = newLeft + '%';
rightEl.style.flexBasis = newRight + '%';
this.panes[leftIdx].width = newLeft + '%';
this.panes[rightIdx].width = newRight + '%';
};
const onUp = () => {
document.removeEventListener('mousemove', onMove);
document.removeEventListener('mouseup', onUp);
this._persist();
};
document.addEventListener('mousemove', onMove);
document.addEventListener('mouseup', onUp);
},
_resetResize(leftIdx, rightIdx) {
this.panes[leftIdx].element.style.flexBasis = '50%';
this.panes[rightIdx].element.style.flexBasis = '50%';
this._persist();
},
_applyResize() {
this.panes.forEach(p => {
if (p.width) p.element.style.flexBasis = p.width;
});
},
_persist() {
if (this.panes.length <= 1) {
localStorage.removeItem('obsigate-panes');
return;
}
const data = {
layout: this.layout,
panes: this.panes.map(p => ({ id: p.id, activeTab: p.activeTab, width: p.width })),
};
localStorage.setItem('obsigate-panes', JSON.stringify(data));
},
getActiveContentArea() {
if (this.panes.length < 2) return document.getElementById('content-area');
return document.getElementById('content-area-' + this.activePaneId) || document.getElementById('content-area-0');
},
isSplit() {
return this.panes.length >= 2;
},
};
// Export and auto-init
if (typeof window !== 'undefined') {
window.PaneManager = PaneManager;
document.addEventListener('DOMContentLoaded', () => {
// Register keyboard shortcuts
document.addEventListener('keydown', (e) => {
if (e.ctrlKey && e.altKey && !e.shiftKey && e.key === '\\') {
e.preventDefault();
PaneManager.splitRight();
}
if (e.ctrlKey && e.altKey && e.shiftKey && e.key === '\\') {
e.preventDefault();
PaneManager.splitDown();
}
});
// Initialize if saved state exists
setTimeout(() => PaneManager.init(), 500);
});
}
export default PaneManager;