add keywords for working with multiple open notebook tabs

Author: bdattoma

src/JupyterLibrary/clients/jupyterlab/Notebook.robot

@@ -51,3 +51,14 @@ Run Current JupyterLab Code Cell
     ...    ${nb.find_element_by_xpath('''div${JLAB XP NB TOOLBAR FRAG}//${run icon}''')}
     Click Element    ${run btn}
     Sleep    0.5s
+
+Get Selected Tab ID
+    [Documentation]    Return the tab ID of the selected notebook tab
+    ${active-nb-tab} =    Get WebElement    xpath:${JL_TABBAR_SELECTED_XPATH}
+    ${tab-id} =    Get Element Attribute    ${active-nb-tab}    id
+    [Return]  ${tab-id}
+
+Select Tab By Name
+    [Documentation]    Select a notebook tab by filename
+    [Arguments]    ${filename}
+    Click Element    xpath:${JL_TABBAR_CONTENT_XPATH}/li/div[.="${filename}"]

src/JupyterLibrary/clients/jupyterlab/Output.robot

@@ -39,3 +39,14 @@ Screenshot Each Output of Active JupyterLab Document
         Screenshot Each Output of Active JupyterLab Cell    ${prefix}_cell_${i}
         Screenshot Markdown of Active JupyterLab Cell    ${prefix}_cell_${i}
     END
+
+Wait Until a Given JupyterLab Code Cell Is Not Active In a Given Tab
+  [Documentation]  Waits until the given cell in a specific JL tab no longer has an active prompt "[*]:".
+  [Arguments]  ${tab_id_to_wait}  ${cell_n}  ${timeout}=120seconds
+  Wait Until Element Is Not Visible  xpath=//div[@aria-labelledby="${tab_id_to_wait}"]/${NB TAB XP CONTENT}/div[${cell_n}]/${CELL XP INPUT STATUS ICON}   ${timeout}
+
+Get A JupyterLab Code Cell Output In a Given Tab
+   [Documentation]  It returns the output of a given cell in a specific JL tab
+   [Arguments]  ${tab_id_to_read}  ${cell_n}
+   ${outputtext}=  Get Text  xpath=//div[@aria-labelledby="${tab_id_to_read}"]/${NB TAB XP CONTENT}/div[${cell_n}]/${CELL XP OUTPUT TEXT}
+   [Return]  ${outputtext}

src/JupyterLibrary/clients/jupyterlab/Selectors.robot

@@ -31,6 +31,11 @@ ${JLAB XP NB FRAG}    ${JLAB XP MAIN AREA FRAG}\[contains(@class, 'jp-NotebookPa
 ${JLAB XP NB TOOLBAR FRAG}    [contains(@class, 'jp-NotebookPanel-toolbar')]
 ${JLAB XP NB TOOLBAR}    //div${JLAB XP NB TOOLBAR FRAG}
 ${JLAB XP BUSY KERNEL}    //*[local-name() = 'div' and conttains(@class, 'jp-FilledCircleIcon' or (local-name() = 'svg' and contains(@data-icon, 'ui-components:circle-filled')))]
+${CELL XP INPUT}  div[contains(@class, p-Cell-inputWrapper)]/div[contains(@class,"jp-Cell-inputArea")]
+${CELL XP INPUT STATUS ICON}  ${CELL XP INPUT}/div[contains(@class,"jp-InputArea-prompt") and (.="[*]:")]
+${CELL XP OUTPUT}  div[contains(@class, jp-Cell-outputWrapper)]/div[contains(@class,"jp-Cell-outputArea")]
+${CELL XP OUTPUT TEXT}  ${CELL XP OUTPUT}//div[contains(@class,"jp-RenderedText")]
+${NB TAB XP CONTENT}  div[@aria-label="notebook content"]
 ## dock panel
 ${JLAB XP DOCK PANEL}    //*[@id = 'jp-main-dock-panel']
 ${JLAB XP DOCK TAB}    ${JLAB XP DOCK PANEL}//ul[contains(@class, 'p-TabBar-content')]/li[contains(@class, 'p-TabBar-tab')]