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import Operator from "../Operator";
import TabPresenter from "../../presenters/TabPresenter";
import FindRepository from "../../repositories/FindRepository";
import FindClient from "../../clients/FindClient";
import ConsoleClient from "../../infrastructures/ConsoleClient";
import FramePresenter from "../../presenters/FramePresenter";
export default class FindNextOperator implements Operator {
constructor(
private readonly tabPresenter: TabPresenter,
private readonly findRepository: FindRepository,
private readonly findClient: FindClient,
private readonly consoleClient: ConsoleClient,
private readonly framePresenter: FramePresenter
) {}
async run(): Promise<void> {
const tab = await this.tabPresenter.getCurrent();
const tabId = tab?.id;
if (tabId == null) {
return;
}
const state = await this.findRepository.getLocalState(tabId);
if (state) {
// Start to find the keyword from the current frame which last found on,
// and concat it to end of frame ids to perform a wrap-search
//
// ,- keyword should be in this frame
// |
// [100, 101, 0, 100]
// |
// `- continue from frame id 100
//
const targetFrameIds = state.frameIds
.slice(state.framePos)
.concat(
state.frameIds.slice(0, state.framePos),
state.frameIds[state.framePos]
);
for (let i = 0; i < targetFrameIds.length; ++i) {
const found = await this.findClient.findNext(
tabId,
targetFrameIds[i],
state.keyword
);
if (found) {
this.findRepository.setLocalState(tabId, {
...state,
framePos: (i + state.framePos) % state.frameIds.length, // save current frame position or first
});
return;
}
this.findClient.clearSelection(tabId, targetFrameIds[i]);
}
// The keyword is gone.
this.consoleClient.showError(
tabId,
"Pattern not found: " + state.keyword
);
return;
}
const keyword = await this.findRepository.getGlobalKeyword();
if (keyword) {
const frameIds = await this.framePresenter.getAllFrameIds(tabId);
for (const frameId of frameIds) {
await this.findClient.clearSelection(tabId, frameId);
}
for (let framePos = 0; framePos < frameIds.length; ++framePos) {
const found = await this.findClient.findNext(
tabId,
frameIds[framePos],
keyword
);
if (found) {
await this.findRepository.setLocalState(tabId, {
frameIds,
framePos,
keyword,
});
await this.consoleClient.showInfo(tabId, "Pattern found: " + keyword);
return;
}
}
this.consoleClient.showError(tabId, "Pattern not found: " + keyword);
return;
}
await this.consoleClient.showError(tabId, "No previous search keywords");
}
}
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