Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | 1x | import { ToolGroupManager } from '../../store';
import { MouseBindings, ToolModes } from '../../enums';
import { EventTypes } from '../../types';
import getMouseModifier from './getMouseModifier';
import { keyEventListener } from '../../eventListeners';
const { Active } = ToolModes;
/**
* Iterate tool group tools until we find a tool that has a "ToolBinding"
* that matches our TouchEvent's `buttons`. It's possible there will be no match
* (no active tool for that touch button combination).
*
* @param evt - The event dispatcher touch event.
*
* @returns tool
*/
export default function getActiveToolForTouchEvent(
evt: EventTypes.NormalizedTouchEventType
) {
// Todo: we should refactor this to use getToolsWithModesForTouchEvent instead
const { renderingEngineId, viewportId } = evt.detail;
const touchEvent = evt.detail.event;
const toolGroup = ToolGroupManager.getToolGroupForViewport(
viewportId,
renderingEngineId
);
if (!toolGroup) {
return null;
}
const toolGroupToolNames = Object.keys(toolGroup.toolOptions);
const numTouchPoints = Object.keys(touchEvent.touches).length;
// If any keyboard modifier key is also pressed
const modifierKey =
getMouseModifier(touchEvent) || keyEventListener.getModifierKey();
const defaultMousePrimary = toolGroup.getDefaultMousePrimary();
for (let j = 0; j < toolGroupToolNames.length; j++) {
const toolName = toolGroupToolNames[j];
const toolOptions = toolGroup.toolOptions[toolName];
const correctBinding =
toolOptions.bindings.length &&
/**
* TODO: setActiveTool treats MouseBindings.Primary in a special way
* which is analgous to numTouchPoints === 1 as the primary interaction
* for touch based applications. The ToolGroup set active and get active
* logic should be updated to account for numTouchPoints === 1
*/
toolOptions.bindings.some(
(binding) =>
(binding.numTouchPoints === numTouchPoints ||
(numTouchPoints === 1 &&
binding.mouseButton === defaultMousePrimary)) &&
binding.modifierKey === modifierKey
);
if (toolOptions.mode === Active && correctBinding) {
return toolGroup.getToolInstance(toolName);
}
}
}
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