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Viewer update and autozoom (#4800)

Browse Source 
Updated embed PDF
Added Autozoom
Added file page size to metadata for use in calculations for autozoom,
will come in handy elsewhere.

---------

Co-authored-by: James Brunton <[email protected]>
This commit is contained in:
Reece Browne
2025-11-10 13:52:13 +00:00
committed by GitHub
co-authored by James Brunton
parent 3cf89b6ede
commit ce6b2460d8
15 changed files with 1214 additions and 622 deletions
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frontend/src/core/components/viewer/SpreadAPIBridge.tsx
+27 -24
View File
@@ -7,33 +7,36 @@ import { useViewer } from '@app/contexts/ViewerContext';
*/
export function SpreadAPIBridge() {
const { provides: spread, spreadMode } = useSpread();
const { registerBridge } = useViewer();
const { registerBridge, triggerImmediateSpreadUpdate } = useViewer();
useEffect(() => {
if (spread) {
const newState = {
spreadMode,
isDualPage: spreadMode !== SpreadMode.None
};
// Register this bridge with ViewerContext
registerBridge('spread', {
state: newState,
api: {
setSpreadMode: (mode: SpreadMode) => {
spread.setSpreadMode(mode);
},
getSpreadMode: () => spread.getSpreadMode(),
toggleSpreadMode: () => {
// Toggle between None and Odd (most common dual-page mode)
const newMode = spreadMode === SpreadMode.None ? SpreadMode.Odd : SpreadMode.None;
spread.setSpreadMode(newMode);
},
SpreadMode: SpreadMode, // Export enum for reference
}
});
if (!spread) {
return;
}
}, [spread, spreadMode]);
const newState = {
spreadMode,
isDualPage: spreadMode !== SpreadMode.None,
};
registerBridge('spread', {
state: newState,
api: {
setSpreadMode: (mode: SpreadMode) => {
spread.setSpreadMode(mode);
},
getSpreadMode: () => spread.getSpreadMode(),
toggleSpreadMode: () => {
const current = spread.getSpreadMode();
const nextMode = current === SpreadMode.None ? SpreadMode.Odd : SpreadMode.None;
spread.setSpreadMode(nextMode);
},
SpreadMode,
},
});
triggerImmediateSpreadUpdate(spreadMode);
}, [spread, spreadMode, registerBridge, triggerImmediateSpreadUpdate]);
return null;
}