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February 2001 Genie Application Style Guide 41
Backward Navigation
7
Example 7-1
<template>
<do type="prev" label="Back">
<prev/>
</do>
</template>
<card id="start" onenterforward="#start2"
onenterbackward="backtome.wml">
</card>
<card id="start2" title="The Start">
…
Example 7-1 shows how to prevent the user from navigating back through a card by
catching the reverse entry into the card. In this case, the user is taken back an
additional card.
■ Always provide a label for a <do type="prev">.
The Nokia browser assigns the label Back instead of the defined label to the right
softkey. If no label is defined, the label Back is automatically assigned to the right
softkey. On some Mitsubishi Trium browsers, if a label is not defined, the right key
will be labelled prev – which is not intuitive.
■ Create a second way to navigate backward when moving back in the history
stack is not desirable.
Provide backward navigation via <do type="options"> if backward navigation
should return the user to a higher menu or the top menu of the application. Use the
label Done to indicate that backward navigation will take the user back more than one
step. The label Done appears on the secondary softkey on the Openwave browser and
also under the Options softkey on the Nokia 7110 browser.