Top 10 Examples of "openseadragon in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'openseadragon' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
renderLayout() {
const { world } = this.viewer
const { mangaMode, bookMode } = this.props
const pos = new OpenSeaDragon.Point(0, 0)
const count = world.getItemCount()
// Cache tile data
let bounds = null
// first page
let firstPage = null
let firstPageIndex = bookMode && mangaMode && count > 1 ? 1 : 0
let firstPageBounds = null
// Next page
let nextPage = null
let nextPageBounds = null
let nextPageIndex = bookMode && mangaMode ? 0 : 1
if (count > 0) {
// Page view (single page)
firstPage = world.getItemAt(firstPageIndex)resize(viewer) {
const { canvas } = this.props;
const firstImage = viewer.world.getItemAt(0);
if (!firstImage) {
return;
}
const imgWidth = canvas.getWidth();
const imgHeight = canvas.getHeight();
const imgAspectRatio = imgWidth / imgHeight;
const boundsRect = viewer.viewport.getBounds(true);
const viewportOrigin = new OpenSeadragon.Point(
boundsRect.x,
boundsRect.y * imgAspectRatio
);
const viewportWidth = boundsRect.width;
const viewportHeight = boundsRect.height * imgAspectRatio;
// Redraw
const viewportZoom = viewer.viewport.getZoom(true);
const zoom = firstImage.viewportToImageZoom(viewportZoom);
const imageRatio =
(firstImage._scaleSpring.current.value *
firstImage.viewport._containerInnerSize.x) /
firstImage.source.dimensions.x;
const isZoomedOut =componentDidMount() {
const { osdConfig, viewer } = this.props;
if (!this.ref.current) {
return;
}
this.viewer = new OpenSeadragon({
id: this.ref.current.id,
...osdConfig,
});
this.osdCanvasOverlay = new OpenSeadragonCanvasOverlay(this.viewer);
this.viewer.addHandler('update-viewport', this.onUpdateViewport);
// Set a flag when OSD starts animating (so that viewer updates are not used)
this.viewer.addHandler('animation-start', () => {
this.osdUpdating = true;
});
this.viewer.addHandler('animation-finish', this.onViewportChange);
this.viewer.addHandler('animation-finish', () => {
this.osdUpdating = false;
});
this.updateCanvas = this.canvasUpdateCallback();mounted() {
this.viewer = OpenSeadragon({
id: "osd_viewer",
// need to change this to use the images in the node module
prefixUrl: "https://cdn.jsdelivr.net/npm/openseadragon@2.4/build/openseadragon/images/",
sequenceMode: false,
tileSources: []
});
}
}componentDidMount() {
this.setStrings();
if (typeof window.OpenSeadragon !== 'undefined') {
OPENSEADRAGONVIEWER = window.OpenSeadragon(this._config());
} else {
OPENSEADRAGONVIEWER = OpenSeadragon(this._config());
}
// Start at the image specified in the URL
OPENSEADRAGONVIEWER.goToPage(this.props.currentPageId);
}initOpenSeaDragon = () => {
const { id, container, pages, renderError, updateContextState } = this.props
// Detect browser vendor
this.browser = getKeyByValue(OpenSeaDragon.BROWSERS, OpenSeaDragon.Browser.vendor)
// Create viewer
this.viewer = OpenSeaDragon({
element: this.OSDContainer.current,
tileSources: pages[0],
...OSDConfig,
})
// Events handler
this.viewer.addHandler('open', () => {
this.renderLayout()
this.fitBounds()
// Prevent unessesart context updates
if (renderError) {
updateContextState({ renderError: false })
}
})initOpenSeaDragon = () => {
const { id, container, pages, renderError, updateContextState } = this.props
// Detect browser vendor
this.browser = getKeyByValue(OpenSeaDragon.BROWSERS, OpenSeaDragon.Browser.vendor)
// Create viewer
this.viewer = OpenSeaDragon({
element: this.OSDContainer.current,
tileSources: pages[0],
...OSDConfig,
})
// Events handler
this.viewer.addHandler('open', () => {
this.renderLayout()
this.fitBounds()
// Prevent unessesart context updates
if (renderError) {
updateContextState({ renderError: false })},
});
reAddFullScreenHandler(viewer);
// to allow margins around horizontally and vertically oriented images on home zoom
const margins = viewer.viewport.getMargins();
viewer.viewport.setMargins(
{
left: 30,
top: 10,
right: 30,
bottom: 10,
},
margins,
);
viewer.addControl(document.querySelector('#details-button'), {
anchor: OpenSeadragon.ControlAnchor.TOP_LEFT,
});
// an empty label that 508 scan doesnt like
document.querySelector('.openseadragon-container label').remove();
setViewer(viewer);
}
});
},componentDidMount() {
const {getRef, onImageLoaded, tileSource} = this.props;
if (!tileSource) {
console.error('Something went wrong, we cannot display the open sea dragon');
this.setState({ fallback: true });
return;
}
this.setState({ fallback: false });
this.viewer = new OpenSeadragon({
element: this.element,
ajaxWithCredentials: false,
showNavigator: true,
showRotationControl: true,
defaultZoomLevel: 0,
maxZoomPixelRatio: 1,
navigatorPosition: 'BOTTOM_RIGHT',
animationTime: 0.3,
immediateRender: true,
preserveViewport: true,
blendTime: 0.1,
minPixelRatio: 0.5,
visibilityRatio: 0.65,
constrainDuringPan: false,
showSequenceControl: false,
showNavigationControl: false,componentDidMount() {
const { getRef, onImageLoaded, tileSources, osdOptions } = this.props;
if (!tileSources) {
console.error(
'Something went wrong, we cannot display the open sea dragon'
);
this.setState({ fallback: true });
return;
}
this.setState({ fallback: false });
this.viewer = new OpenSeadragon({
element: this.element,
ajaxWithCredentials: false,
showNavigator: true,
showRotationControl: true,
defaultZoomLevel: 0,
maxZoomPixelRatio: 1,
navigatorPosition: 'BOTTOM_RIGHT',
animationTime: 0.3,
immediateRender: true,
preserveViewport: true,
blendTime: 0.1,
minPixelRatio: 0.5,
visibilityRatio: 0.65,
minZoomImageRatio: 1,
constrainDuringPan: false,
showSequenceControl: false,